ceeol.com

ceeol.com is SSL secured

Free website and domain report on ceeol.com

Last Updated: 3rd February, 2022 Update Now
Overview

Snoop Summary for ceeol.com

This is a free and comprehensive report about ceeol.com. Ceeol.com has the potential to be earning an estimated $15 USD per day from advertising revenue. If ceeol.com was to be sold it would possibly be worth $11,060 USD (based on the daily revenue potential of the website over a 24 month period). Ceeol.com is very popular with an estimated 5,311 daily unique visitors. This report was last updated 3rd February, 2022.

About ceeol.com

Site Preview: ceeol.com ceeol.com
Title: Central and Eastern European Online Library (CEEOL)
Description: C.E.E.O.L. is an online library providing access to over 440 humanities and social science full text periodicals from and about Central and Eastern Europe (CEE), to individual and institutional users from all over the world. The publishers range from cultural independent publishers to leading universities.
Keywords and Tags: online shopping
Related Terms: 440 769 1015, bentham science publishers, brightspace eastern, cee, central cee, central european, eastern, eastern europe, eastern rites, periodicals
Fav Icon:
Age: Over 24 years old
Domain Created: 10th March, 2000
Domain Updated: 11th March, 2020
Domain Expires: 10th March, 2021
Review

Snoop Score

3/5 (Great!)

Valuation

$11,060 USD
Note: All valuation figures are estimates.

Popularity

High
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 104,262
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 5,311
Monthly Visitors: 161,659
Yearly Visitors: 1,938,627
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $15 USD
Monthly Revenue: $461 USD
Yearly Revenue: $5,525 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: ceeol.com 9
Domain Name: ceeol 5
Extension (TLD): com 3
Expiry Check:

Page Speed Analysis

Average Load Time: 1.50 seconds
Load Time Comparison: Faster than 59% of sites

PageSpeed Insights

Avg. (All Categories) 59
Performance 50
Accessibility 68
Best Practices 79
SEO 80
Progressive Web App 19
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.ceeol.com/
Updated: 25th November, 2020

1.54 seconds
First Contentful Paint (FCP)
51%
43%
6%

0.01 seconds
First Input Delay (FID)
99%
1%
0%

Simulate loading on desktop
50

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for ceeol.com. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Total Blocking Time — 10 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

First CPU Idle — 1.6 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 60 ms
Users could experience a delay when interacting with the page.
Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive ceeol.com as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://ceeol.com/
0
435.25700015016
280
0
301
text/html
https://www.ceeol.com/
435.72599999607
1426.3840001076
9513
46757
200
text/html
Document
https://www.ceeol.com/css/font.css
1442.9860000964
2196.7670000158
832
2064
200
text/css
Stylesheet
https://www.ceeol.com/css/font-awesome.min.css
1443.1630000472
2206.2890001107
6486
27471
200
text/css
Stylesheet
https://www.ceeol.com/css/bootstrap.min.css
1443.4619999956
2302.149000112
16803
99123
200
text/css
Stylesheet
https://www.ceeol.com/css/jetmenu.css?v2
1443.8410000876
2201.046000002
2534
14215
200
text/css
Stylesheet
https://www.ceeol.com/css/toastr.css
1444.0780000295
1913.8800001238
3041
6055
200
text/css
Stylesheet
https://www.ceeol.com/css/animate.css
1444.3779999856
2253.0990000814
6451
54807
200
text/css
Stylesheet
https://www.ceeol.com/css/camera.css
1444.6280000266
2242.0080001466
2298
7952
200
text/css
Stylesheet
https://www.ceeol.com/css/layerslider.css
1444.8490000796
2432.2669999674
3559
13253
200
text/css
Stylesheet
https://www.ceeol.com/css/util.carousel.css
1445.0199999847
2242.4840000458
2892
8674
200
text/css
Stylesheet
https://www.ceeol.com/css/homepage.css
1445.2639999799
2203.5900000483
3668
13207
200
text/css
Stylesheet
https://www.ceeol.com/css/custom.css?v6
1445.4890000634
2344.9870001059
21720
113591
200
text/css
Stylesheet
https://www.ceeol.com/images/CEEOL-logo-header.png
1449.6940001845
2215.3430001345
7760
7512
200
image/png
Image
https://www.ceeol.com/api/image/GetSlideItemImage/picture_welcome-to-ceeol_1_2.png
1449.8610000592
2333.5470000748
14410
13931
200
image/png
Image
https://www.ceeol.com/api/image/GetSlideItemImage/picture_your-online-archive_2_4.png
1450.1800001599
2514.5780001767
14416
13931
200
image/png
Image
https://www.ceeol.com/api/image/GetSlideItemImage/picture_scholarly-journals-and-ebooks_3_7.png
1450.3419999965
2510.6470000464
14436
13931
200
image/png
Image
https://www.ceeol.com/api/image/GetPhotoAlbumCover/picture_advocate_4.jpg
1450.5750001408
4656.0090000276
1177190
1176727
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910649.jpg
1450.737999985
2789.282000158
173028
172549
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910544.png
1450.9340000805
2636.9150001556
88082
87604
200
image/png
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910018.jpg
1451.2130001094
3472.1510000527
723029
722550
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910235.png
1451.3840000145
2767.2210000455
170213
169734
200
image/png
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910250.jpg
1451.6500001773
2722.6360000204
104197
103718
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_528163.jpg
1451.7730001826
2309.3510000035
22630
22152
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_517111.jpg
1452.014000155
2520.3909999691
20925
20447
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_894877.jpg
1452.1510000341
2651.0809999891
108000
107521
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_904797.jpg
1452.2710000165
2207.7740000095
5007
4530
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_906455.jpg
1452.4580000434
2244.868000038
5131
4654
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=studia-universitatis-babes-bolyai-studia-europaea-1.jpg
1452.5890001096
2615.5380001292
48319
47792
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=studia-universitatis-babes-bolyai-orthodox-theology-2.jpg
1452.7290000115
2582.6990001369
51465
50934
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=transitions-online-3.jpg
1453.217000002
2368.1910000741
4385
3921
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=bulgarian-folklore-6.jpg
1453.3870001324
2304.6940001659
28091
27626
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=the-sign-7.jpg
1453.9630000945
2616.1480001174
38384
37939
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=balkan-studies-8.jpg
1454.0890001226
2449.5570000727
52910
52453
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=sociological-studies-10.jpg
1454.2140001431
2536.6170001216
56969
56498
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=slavica-slovaca-12.JPG
1454.3680001516
2347.9510000907
12900
12439
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=film-quarterly-13.jpg
1454.6130001545
2615.3730000369
20624
20165
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=karta-19.jpg
1454.7280000988
2613.5530001484
148893
148451
200
image/jpg
Image
https://www.ceeol.com/images/CEEOL-logo.png
1454.8470000736
2205.4920000955
3992
3744
200
image/png
Image
https://www.ceeol.com/js/libs/require.js
1448.9750000648
2202.7559999842
6553
15219
200
application/javascript
Script
https://www.ceeol.com/js/main.js?v5
1449.3329999968
2240.2980001643
1376
4226
200
application/javascript
Script
https://www.google-analytics.com/analytics.js
2441.7779999785
2446.2210000493
19447
47051
200
text/javascript
Script
https://www.ceeol.com/fonts/OpenSans-Regular.woff
2453.0350000132
2928.8250000682
67787
67524
200
application/x-font-woff
Font
https://www.ceeol.com/fonts/fontawesome-webfont.ttf?v=4.5.0
2460.9930000734
3134.0600000694
142337
142072
200
application/octet-stream
Font
https://www.ceeol.com/fonts/OpenSans-Bold.woff
2462.017999962
3034.3430000357
70451
70188
200
application/x-font-woff
Font
https://www.ceeol.com/fonts/OpenSans-Semibold.woff
2463.4790001437
3026.4500000048
70146
69884
200
application/x-font-woff
Font
https://www.ceeol.com/js/homepage.js?ver=30
2505.0749999937
2931.8140000105
789
729
200
application/javascript
Script
https://www.google-analytics.com/j/collect?v=1&_v=j87&a=1027229635&t=pageview&_s=1&dl=https%3A%2F%2Fwww.ceeol.com%2F&ul=en-us&de=UTF-8&dt=CEEOL%20-%20Home%20Page&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=IEBAAEABAAAAAC~&jid=143629309&gjid=261299316&cid=388391139.1606275132&tid=UA-72316542-1&_gid=1272303477.1606275132&_r=1&_slc=1&z=1292117086
2529.9949999899
2533.0570000224
619
4
200
text/plain
XHR
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j87&tid=UA-72316542-1&cid=388391139.1606275132&jid=143629309&gjid=261299316&_gid=1272303477.1606275132&_u=IEBAAEAAAAAAAC~&z=846359146
2536.9730000384
2542.6720001269
689
1
200
text/plain
XHR
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
2538.0930001847
2933.4430000745
33645
95786
200
application/javascript
Script
https://www.ceeol.com/js/libs/jetmenu.js?ver=30
2972.6380000357
3448.9629999734
1226
3005
200
application/javascript
Script
https://www.ceeol.com/js/libs/bootstrap.min.js?ver=30
2973.0800001416
3458.2690000534
8002
29110
200
application/javascript
Script
https://www.ceeol.com/js/libs/jquery-migrate-1.2.1.min.js?ver=30
2973.5670001246
3457.9270000104
3380
7200
200
application/javascript
Script
https://www.ceeol.com/js/libs/jquery.easing.1.3.js?ver=30
2973.9200000186
3450.2390001435
1585
4582
200
application/javascript
Script
https://www.ceeol.com/js/libs/owl.carousel.min.js?ver=30
2975.9299999569
3457.3970001657
8549
23890
200
application/javascript
Script
https://www.ceeol.com/js/libs/camera.min.js?ver=30
3453.0599999707
3940.0460000616
11736
39348
200
application/javascript
Script
https://www.ceeol.com/js/app-init.js?ver=30
3472.7330000605
3952.6550001465
2503
12396
200
application/javascript
Script
https://www.ceeol.com/images/camera_skins.png
3969.8779999744
4450.3360001836
4745
4498
200
image/png
Image
https://www.ceeol.com/images/camera-loader.gif
3970.2930001076
4450.8360000327
9537
9289
200
image/gif
Image
https://www.ceeol.com/api/image/GetSlideImage/picture_welcome-to-ceeol_1_1.jpg
3995.9440000821
4496.868000133
49914
49509
200
image/jpg
Image
https://www.ceeol.com/js/modules/main-module.js?ver=30
4005.1780000795
4449.7840001713
5436
31319
200
application/javascript
Script
https://www.ceeol.com/js/common.js?ver=30
4456.9980001543
4935.8720001765
1713
4223
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/login-factory.js?ver=30
4457.4370000046
4937.3729999643
892
1383
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/customer-factory.js?ver=30
4457.8460000921
4938.8449999969
742
871
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/preorder-factory.js?ver=30
4458.4109999705
4936.4030000288
816
1158
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/suggestedwork-factory.js?ver=30
4458.8140000124
4937.9950000439
702
739
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/shopping-cart-factory.js?ver=30
4459.3720000703
4939.1680001281
678
607
200
application/javascript
Script
https://www.ceeol.com/js/modules/controllers/register-customer.js?ver=30
4459.8720001522
4937.6880000345
1329
4139
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/toastr-factory.js?ver=30
4460.3500000667
4936.6719999816
873
1913
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/message-dialog-factory.js?ver=30
4460.8120000921
4938.4139999747
1257
5555
200
application/javascript
Script
https://www.ceeol.com/js/modules/directives/common-directives.js?ver=30
4461.2610000186
4937.0020001661
4359
23795
200
application/javascript
Script
https://www.ceeol.com/js/libs/jquery.storageapi.min.js?ver=30
4461.9680000469
4939.5129999612
2422
6973
200
application/javascript
Script
https://www.ceeol.com/js/libs/angular.min.js?ver=30
4471.0800000466
4941.531999968
39826
106897
200
application/javascript
Script
https://www.ceeol.com/api/image/GetSlideImage/picture_your-online-archive_1_2.jpg
4516.6550001595
4948.0670001358
39571
39160
200
image/jpg
Image
https://www.ceeol.com/js/libs/patternsRegExp.js?ver=30
4966.7879999615
5443.6640001368
1535
2699
200
application/javascript
Script
https://www.ceeol.com/js/libs/masks.js?ver=30
4967.3860000912
5444.6090001147
542
156
200
application/javascript
Script
https://www.ceeol.com/js/libs/toastr.min.js?ver=30
4977.8050000314
5458.1379999872
1934
4260
200
application/javascript
Script
https://www.ceeol.com/js/libs/bootstrap-datepicker.js?ver=30
4979.1620001197
5475.1010001637
7855
26995
200
application/javascript
Script
https://www.ceeol.com/js/libs/bootstrap-typeahead.js?ver=30
4980.285000056
5541.8720000889
2528
6661
200
application/javascript
Script
https://www.ceeol.com/js/libs/angular-resource.min.js?ver=30
4989.7000000346
5444.2580000032
1986
3327
200
application/javascript
Script
https://www.ceeol.com/js/libs/angular-cookies.min.js?ver=30
4990.3090000153
5542.8000001702
982
825
200
application/javascript
Script
https://www.ceeol.com/api/login/GetItemsCount
5601.6870001331
6099.4810000993
269
11
200
application/json
XHR
https://www.ceeol.com/Shibboleth.sso/DiscoFeed
5602.4520001374
6091.8960000854
4676
4497
200
application/json
XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1459.758
9.029
1472.529
16.136
2333.818
6.175
2376.623
5.689
2464.746
30.934
2495.733
32.471
2535.968
24.96
2963.165
10.497
2980.197
24.603
3059.901
6.837
3082.577
9.584
3168.861
7.291
3494.973
7.302
3973.201
52.905
4485.658
8.558
4529.955
16.851
4649.19
17.084
4699.255
17.087
4732.518
14.039
4765.844
17.079
4815.903
17.002
4849.423
16.902
4899.192
17.007
4932.98
16.666
4950.027
8.275
4966.165
16.96
5010.873
10.404
5575.396
61.385
5636.833
6.027
5642.897
5.308
5648.407
81.879
5738.165
321.473
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Minify CSS — Potential savings of 2 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Ceeol.com should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/css/custom.css?v6
21720
2066
Minify JavaScript — Potential savings of 2 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Ceeol.com should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/js/modules/main-module.js?ver=30
5436
2210
Remove unused CSS — Potential savings of 35 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Ceeol.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/css/custom.css?v6
21720
19674
https://www.ceeol.com/css/bootstrap.min.css
16803
16130
Remove unused JavaScript
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression — Potential savings of 3 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/Shibboleth.sso/DiscoFeed
4497
3540
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Ceeol.com should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://ceeol.com/
190
https://www.ceeol.com/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Ceeol.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.

Diagnostics

Avoids an excessive DOM size — 644 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
644
Maximum DOM Depth
14
Maximum Child Elements
17
Avoid chaining critical requests — 15 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Ceeol.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.3 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
Unattributable
409.246
1.071
0.137
https://www.ceeol.com/
368.114
4.097
1.572
https://www.ceeol.com/js/libs/require.js
157.636
147.955
1.435
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
105.979
84.371
2.046
https://www.ceeol.com/js/libs/camera.min.js?ver=30
79.119
64.417
0.829
Minimizes main-thread work — 1.2 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Rendering
525.87799999999
Script Evaluation
359.743
Other
158.932
Style & Layout
125.798
Parse HTML & CSS
39.463
Script Parsing & Compilation
23.572
Garbage Collection
5.265
Keep request counts low and transfer sizes small — 83 requests • 3,744 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
83
3833402
Image
30
3219153
Font
4
350721
Script
32
177198
Stylesheet
11
70284
Document
1
9513
Other
5
6533
Media
0
0
Third-party
3
20755
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
20066
0
689
0
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
img
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.25511598649552
0.14241125335586
0.0074503404379652
0.0047555794846354
0.0035020033395044
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 2 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
Unattributable
232
321
https://www.ceeol.com/js/libs/angular-cookies.min.js?ver=30
8300
61
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 1.0 s
The time taken for the first image or text on the page to be rendered.

Other

First Meaningful Paint — 1.1 s
The time taken for the primary content of the page to be rendered.

Opportunities

Defer offscreen images — Potential savings of 522 KiB
Time to Interactive can be slowed down by resources on the page. Ceeol.com should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/api/image/getjournalcoverimage?id=karta-19.jpg
148451
148451
https://www.ceeol.com/api/image/getjournalcoverimage?id=sociological-studies-10.jpg
56498
56498
https://www.ceeol.com/api/image/getjournalcoverimage?id=balkan-studies-8.jpg
52453
52453
https://www.ceeol.com/api/image/getjournalcoverimage?id=studia-universitatis-babes-bolyai-orthodox-theology-2.jpg
50934
50934
https://www.ceeol.com/api/image/getjournalcoverimage?id=studia-universitatis-babes-bolyai-studia-europaea-1.jpg
47792
47792
https://www.ceeol.com/api/image/GetSlideImage/picture_your-online-archive_1_2.jpg
39160
39160
https://www.ceeol.com/api/image/getjournalcoverimage?id=the-sign-7.jpg
37939
37939
https://www.ceeol.com/api/image/getjournalcoverimage?id=bulgarian-folklore-6.jpg
27626
27626
https://www.ceeol.com/api/image/getjournalcoverimage?id=film-quarterly-13.jpg
20165
20165
https://www.ceeol.com/api/image/GetSlideItemImage/picture_your-online-archive_2_4.png
13931
13931
https://www.ceeol.com/api/image/GetSlideItemImage/picture_scholarly-journals-and-ebooks_3_7.png
13931
13931
https://www.ceeol.com/api/image/getjournalcoverimage?id=slavica-slovaca-12.JPG
12439
12439
https://www.ceeol.com/images/camera-loader.gif
9289
9289
https://www.ceeol.com/api/image/getjournalcoverimage?id=transitions-online-3.jpg
3921
3921
Serve images in next-gen formats — Potential savings of 219 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910235.png
169734
135742
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910544.png
87604
54682
https://www.ceeol.com/api/image/GetSlideItemImage/picture_welcome-to-ceeol_1_2.png
13931
11219
https://www.ceeol.com/api/image/GetSlideItemImage/picture_your-online-archive_2_4.png
13931
11219
https://www.ceeol.com/api/image/GetSlideItemImage/picture_scholarly-journals-and-ebooks_3_7.png
13931
11219

Diagnostics

Avoid enormous network payloads — Total size was 3,744 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.ceeol.com/api/image/GetPhotoAlbumCover/picture_advocate_4.jpg
1177190
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910018.jpg
723029
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910649.jpg
173028
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910235.png
170213
https://www.ceeol.com/api/image/getjournalcoverimage?id=karta-19.jpg
148893
https://www.ceeol.com/fonts/fontawesome-webfont.ttf?v=4.5.0
142337
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_894877.jpg
108000
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910250.jpg
104197
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910544.png
88082
https://www.ceeol.com/fonts/OpenSans-Bold.woff
70451

Metrics

Speed Index — 3.6 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 5.1 s
The timing of the largest text or image that is painted.
Time to Interactive — 5.0 s
The time taken for the page to become fully interactive.
Cumulative Layout Shift — 0.421
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Eliminate render-blocking resources — Potential savings of 790 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Ceeol.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://www.ceeol.com/css/font.css
832
70
https://www.ceeol.com/css/font-awesome.min.css
6486
150
https://www.ceeol.com/css/bootstrap.min.css
16803
230
https://www.ceeol.com/css/jetmenu.css?v2
2534
150
https://www.ceeol.com/css/toastr.css
3041
150
https://www.ceeol.com/css/animate.css
6451
150
https://www.ceeol.com/css/camera.css
2298
70
https://www.ceeol.com/css/layerslider.css
3559
70
https://www.ceeol.com/css/util.carousel.css
2892
70
https://www.ceeol.com/css/homepage.css
3668
70
https://www.ceeol.com/css/custom.css?v6
21720
150
Properly size images — Potential savings of 2,474 KiB
Images can slow down the page's load time. Ceeol.com should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/api/image/GetPhotoAlbumCover/picture_advocate_4.jpg
1176727
1118196
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910018.jpg
722550
721337
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910649.jpg
172549
171003
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910235.png
169734
166115
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910250.jpg
103718
103191
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_894877.jpg
107521
89968
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910544.png
87604
86429
https://www.ceeol.com/api/image/GetSlideImage/picture_welcome-to-ceeol_1_1.jpg
49509
26780
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_528163.jpg
22152
21513
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_517111.jpg
20447
19856
https://www.ceeol.com/api/image/GetSlideItemImage/picture_welcome-to-ceeol_1_2.png
13931
8735
Reduce initial server response time — Root document took 990 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.ceeol.com/
991.655

Diagnostics

Serve static assets with an efficient cache policy — 51 resources found
Ceeol.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://www.ceeol.com/fonts/fontawesome-webfont.ttf?v=4.5.0
0
142337
https://www.ceeol.com/fonts/OpenSans-Bold.woff
0
70451
https://www.ceeol.com/fonts/OpenSans-Semibold.woff
0
70146
https://www.ceeol.com/fonts/OpenSans-Regular.woff
0
67787
https://www.ceeol.com/js/libs/angular.min.js?ver=30
0
39826
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
0
33645
https://www.ceeol.com/css/custom.css?v6
0
21720
https://www.ceeol.com/css/bootstrap.min.css
0
16803
https://www.ceeol.com/js/libs/camera.min.js?ver=30
0
11736
https://www.ceeol.com/images/camera-loader.gif
0
9537
https://www.ceeol.com/js/libs/owl.carousel.min.js?ver=30
0
8549
https://www.ceeol.com/js/libs/bootstrap.min.js?ver=30
0
8002
https://www.ceeol.com/js/libs/bootstrap-datepicker.js?ver=30
0
7855
https://www.ceeol.com/images/CEEOL-logo-header.png
0
7760
https://www.ceeol.com/js/libs/require.js
0
6553
https://www.ceeol.com/css/font-awesome.min.css
0
6486
https://www.ceeol.com/css/animate.css
0
6451
https://www.ceeol.com/js/modules/main-module.js?ver=30
0
5436
https://www.ceeol.com/images/camera_skins.png
0
4745
https://www.ceeol.com/js/modules/directives/common-directives.js?ver=30
0
4359
https://www.ceeol.com/images/CEEOL-logo.png
0
3992
https://www.ceeol.com/css/homepage.css
0
3668
https://www.ceeol.com/css/layerslider.css
0
3559
https://www.ceeol.com/js/libs/jquery-migrate-1.2.1.min.js?ver=30
0
3380
https://www.ceeol.com/css/toastr.css
0
3041
https://www.ceeol.com/css/util.carousel.css
0
2892
https://www.ceeol.com/css/jetmenu.css?v2
0
2534
https://www.ceeol.com/js/libs/bootstrap-typeahead.js?ver=30
0
2528
https://www.ceeol.com/js/app-init.js?ver=30
0
2503
https://www.ceeol.com/js/libs/jquery.storageapi.min.js?ver=30
0
2422
https://www.ceeol.com/css/camera.css
0
2298
https://www.ceeol.com/js/libs/angular-resource.min.js?ver=30
0
1986
https://www.ceeol.com/js/libs/toastr.min.js?ver=30
0
1934
https://www.ceeol.com/js/common.js?ver=30
0
1713
https://www.ceeol.com/js/libs/jquery.easing.1.3.js?ver=30
0
1585
https://www.ceeol.com/js/libs/patternsRegExp.js?ver=30
0
1535
https://www.ceeol.com/js/main.js?v5
0
1376
https://www.ceeol.com/js/modules/controllers/register-customer.js?ver=30
0
1329
https://www.ceeol.com/js/modules/factories/message-dialog-factory.js?ver=30
0
1257
https://www.ceeol.com/js/libs/jetmenu.js?ver=30
0
1226
https://www.ceeol.com/js/libs/angular-cookies.min.js?ver=30
0
982
https://www.ceeol.com/js/modules/factories/login-factory.js?ver=30
0
892
https://www.ceeol.com/js/modules/factories/toastr-factory.js?ver=30
0
873
https://www.ceeol.com/css/font.css
0
832
https://www.ceeol.com/js/modules/factories/preorder-factory.js?ver=30
0
816
https://www.ceeol.com/js/homepage.js?ver=30
0
789
https://www.ceeol.com/js/modules/factories/customer-factory.js?ver=30
0
742
https://www.ceeol.com/js/modules/factories/suggestedwork-factory.js?ver=30
0
702
https://www.ceeol.com/js/modules/factories/shopping-cart-factory.js?ver=30
0
678
https://www.ceeol.com/js/libs/masks.js?ver=30
0
542
https://www.google-analytics.com/analytics.js
7200000
19447
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://www.ceeol.com/fonts/OpenSans-Regular.woff
475.79000005499
https://www.ceeol.com/fonts/fontawesome-webfont.ttf?v=4.5.0
673.06699999608
https://www.ceeol.com/fonts/OpenSans-Bold.woff
572.32500007376
https://www.ceeol.com/fonts/OpenSans-Semibold.woff
562.97099986114
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
URL Location
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
line: 2
68

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of ceeol.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Ceeol.com may provide assistance to deaf or hearing-impaired users with captions on videos.
`<video>` elements contain a `<track>` element with `[kind="description"]`
Ceeol.com may provide relevant information that dialogue cannot, by using audio descriptions.

Contrast

Names and labels

Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img
Form elements do not have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
79

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that ceeol.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.11.1
RequireJS
2.1.14
AngularJS
1.2.22
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://www.ceeol.com/js/libs/angular.min.js?ver=30
https://www.ceeol.com/js/libs/angular.min.js.map
https://www.ceeol.com/js/libs/angular-resource.min.js?ver=30
https://www.ceeol.com/js/libs/angular-resource.min.js.map
https://www.ceeol.com/js/libs/angular-cookies.min.js?ver=30
https://www.ceeol.com/js/libs/angular-cookies.min.js.map

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://ceeol.com/
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Includes front-end JavaScript libraries with known security vulnerabilities — 22 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
4
Medium
18
High
80

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for ceeol.com. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of ceeol.com on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Links do not have descriptive text — 1 link found
Make use of descriptive link text to assist search engines in understanding the content.
Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
19

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of ceeol.com. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of ceeol.com on mobile screens.
Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.

Fast and reliable

Page load is not fast enough on mobile networks — Interactive on simulated mobile network at 18.8 s
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.
Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.
`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://ceeol.com/
Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Web app manifest does not meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 56
Performance 39
Accessibility 68
Best Practices 71
SEO 79
Progressive Web App 21
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.ceeol.com/
Updated: 25th November, 2020

1.83 seconds
First Contentful Paint (FCP)
43%
48%
9%

0.02 seconds
First Input Delay (FID)
96%
3%
1%

Simulate loading on mobile
39

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for ceeol.com. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Total Blocking Time — 170 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

Estimated Input Latency — 20 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive ceeol.com as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://ceeol.com/
0
1562.9960000515
257
0
301
text/html
https://www.ceeol.com/
1563.5469999397
2075.4510000115
9515
46761
200
text/html
Document
https://www.ceeol.com/css/font.css
2090.6689999392
2712.2759999475
832
2064
200
text/css
Stylesheet
https://www.ceeol.com/css/font-awesome.min.css
2090.8569999738
2811.3430000376
6486
27471
200
text/css
Stylesheet
https://www.ceeol.com/css/bootstrap.min.css
2091.1749999505
2812.367000035
16803
99123
200
text/css
Stylesheet
https://www.ceeol.com/css/jetmenu.css?v2
2091.4440000197
2819.4290000247
2534
14215
200
text/css
Stylesheet
https://www.ceeol.com/css/toastr.css
2091.9099999592
2561.711999937
3041
6055
200
text/css
Stylesheet
https://www.ceeol.com/css/animate.css
2092.3669999465
2589.3459999934
6451
54807
200
text/css
Stylesheet
https://www.ceeol.com/css/camera.css
2092.5610000268
2819.9970000423
2298
7952
200
text/css
Stylesheet
https://www.ceeol.com/css/layerslider.css
2092.8279999644
2821.219000034
3559
13253
200
text/css
Stylesheet
https://www.ceeol.com/css/util.carousel.css
2093.0060000392
2820.6589999609
2892
8674
200
text/css
Stylesheet
https://www.ceeol.com/css/homepage.css
2093.1489999639
2575.754999998
3668
13207
200
text/css
Stylesheet
https://www.ceeol.com/css/custom.css?v6
2093.2820000453
2578.0240000458
21720
113591
200
text/css
Stylesheet
https://www.ceeol.com/images/CEEOL-logo-header.png
2097.2749999491
3088.5809999891
7760
7512
200
image/png
Image
https://www.ceeol.com/api/image/GetSlideItemImage/picture_welcome-to-ceeol_1_2.png
2097.557000001
2852.1170000313
14410
13931
200
image/png
Image
https://www.ceeol.com/api/image/GetSlideItemImage/picture_your-online-archive_2_4.png
2097.7969999658
2621.8820000067
14416
13931
200
image/png
Image
https://www.ceeol.com/api/image/GetSlideItemImage/picture_scholarly-journals-and-ebooks_3_7.png
2098.0099999579
2872.2380000399
14436
13931
200
image/png
Image
https://www.ceeol.com/api/image/GetPhotoAlbumCover/picture_georgia-2005_6.jpg
2098.1609999435
3047.2509999527
255051
254581
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910649.jpg
2098.357000039
2738.3569999365
173028
172549
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910544.png
2098.5459999647
2961.8570000166
88082
87604
200
image/png
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910018.jpg
2098.6890000058
3877.2429999663
723029
722550
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910235.png
2098.9759999793
2706.4239999745
170213
169734
200
image/png
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910250.jpg
2099.1429999704
2590.4399999417
104197
103718
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_528163.jpg
2099.3079999462
2965.4279999668
22630
22152
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_517111.jpg
2099.4209999917
2591.0610000137
20925
20447
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_894877.jpg
2099.5079999557
3061.6739999969
108000
107521
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_904797.jpg
2099.6029999806
2874.1780000273
5007
4530
200
image/jpg
Image
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_906455.jpg
2099.7140000109
2875.5169999786
5131
4654
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=studia-universitatis-babes-bolyai-studia-europaea-1.jpg
2099.8710000422
2575.5489999428
48319
47792
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=studia-universitatis-babes-bolyai-orthodox-theology-2.jpg
2100.0139999669
2863.7549999403
51465
50934
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=transitions-online-3.jpg
2100.1359999646
2859.7339999396
4385
3921
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=bulgarian-folklore-6.jpg
2100.2840000438
2967.2179999761
28091
27626
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=the-sign-7.jpg
2100.759999943
2711.6489999462
38384
37939
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=balkan-studies-8.jpg
2100.9139999514
2714.5520000486
52910
52453
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=sociological-studies-10.jpg
2101.1299999664
2948.676
56969
56498
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=slavica-slovaca-12.JPG
2101.280999952
2869.8279999662
12900
12439
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=film-quarterly-13.jpg
2101.3850000454
2879.3010000372
20624
20165
200
image/jpg
Image
https://www.ceeol.com/api/image/getjournalcoverimage?id=karta-19.jpg
2101.5139999799
2853.6709999898
148893
148451
200
image/jpg
Image
https://www.ceeol.com/images/CEEOL-logo.png
2101.6319999471
2809.7960000159
3992
3744
200
image/png
Image
https://www.ceeol.com/js/libs/require.js
2096.8939999584
2806.8859999767
6553
15219
200
application/javascript
Script
https://www.ceeol.com/js/main.js?v5
2097.0909999451
2565.9659999656
1376
4226
200
application/javascript
Script
https://www.google-analytics.com/analytics.js
2831.2519999454
2835.1509999484
19447
47051
200
text/javascript
Script
https://www.ceeol.com/fonts/OpenSans-Regular.woff
2840.7939999597
3410.166000016
67787
67524
200
application/x-font-woff
Font
https://www.ceeol.com/fonts/fontawesome-webfont.ttf?v=4.5.0
2849.2959999712
3420.0229999842
142337
142072
200
application/octet-stream
Font
https://www.ceeol.com/fonts/OpenSans-Bold.woff
2850.5870000226
3319.278000039
70451
70188
200
application/x-font-woff
Font
https://www.ceeol.com/fonts/OpenSans-Semibold.woff
2852.0309999585
3509.1239999747
70146
69884
200
application/x-font-woff
Font
https://www.ceeol.com/js/homepage.js?ver=30
2884.9280000431
3322.5109999767
789
729
200
application/javascript
Script
https://www.google-analytics.com/j/collect?v=1&_v=j87&a=596698261&t=pageview&_s=1&dl=https%3A%2F%2Fwww.ceeol.com%2F&ul=en-us&de=UTF-8&dt=CEEOL%20-%20Home%20Page&sd=24-bit&sr=360x640&vp=360x640&je=0&_u=IEBAAEABAAAAAC~&jid=42998732&gjid=1641387649&cid=538103036.1606275153&tid=UA-72316542-1&_gid=1227864103.1606275153&_r=1&_slc=1&z=1079953956
2912.5050000148
2915.7689999556
619
4
200
text/plain
XHR
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
2913.9570000116
3320.9440000355
33645
95786
200
application/javascript
Script
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j87&tid=UA-72316542-1&cid=538103036.1606275153&jid=42998732&gjid=1641387649&_gid=1227864103.1606275153&_u=IEBAAEAAAAAAAC~&z=2106540605
2917.9790000198
2922.3830000265
689
1
200
text/plain
XHR
https://www.ceeol.com/js/libs/jetmenu.js?ver=30
3348.8049999578
3828.2729999628
1226
3005
200
application/javascript
Script
https://www.ceeol.com/js/libs/bootstrap.min.js?ver=30
3349.23599998
3828.6160000134
8002
29110
200
application/javascript
Script
https://www.ceeol.com/js/libs/jquery-migrate-1.2.1.min.js?ver=30
3349.5989999501
3827.7499999385
3380
7200
200
application/javascript
Script
https://www.ceeol.com/js/libs/jquery.easing.1.3.js?ver=30
3350.0540000387
3829.3459999841
1585
4582
200
application/javascript
Script
https://www.ceeol.com/js/libs/owl.carousel.min.js?ver=30
3360.3219999932
3832.4619999621
8549
23890
200
application/javascript
Script
https://www.ceeol.com/js/app-init.js?ver=30
3841.126000043
4331.3510000007
2503
12396
200
application/javascript
Script
https://www.ceeol.com/js/libs/camera.min.js?ver=30
3843.2190000312
4341.5919999825
11736
39348
200
application/javascript
Script
https://www.ceeol.com/js/modules/main-module.js?ver=30
4339.0709999949
4817.2489999561
5436
31319
200
application/javascript
Script
https://www.ceeol.com/images/camera_skins.png
4365.8480000449
4861.9170000311
4745
4498
200
image/png
Image
https://www.ceeol.com/images/camera-loader.gif
4366.1879999563
4845.4530000454
9537
9289
200
image/gif
Image
https://www.ceeol.com/api/image/GetSlideImage/picture_welcome-to-ceeol_1_1.jpg
4390.2440000093
4873.3459999785
49914
49509
200
image/jpg
Image
https://www.ceeol.com/js/common.js?ver=30
4821.2330000242
5297.3469999852
1713
4223
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/login-factory.js?ver=30
4821.8300000299
5299.0510000382
892
1383
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/customer-factory.js?ver=30
4822.5310000125
5297.842000029
742
871
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/preorder-factory.js?ver=30
4822.9610000271
5298.2909999555
816
1158
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/suggestedwork-factory.js?ver=30
4823.5580000328
5299.4549999712
702
739
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/shopping-cart-factory.js?ver=30
4824.1279999493
5298.1000000145
678
607
200
application/javascript
Script
https://www.ceeol.com/js/modules/controllers/register-customer.js?ver=30
4824.5779999997
5300.0979999779
1329
4139
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/toastr-factory.js?ver=30
4824.9879999785
5327.4779999629
873
1913
200
application/javascript
Script
https://www.ceeol.com/js/modules/factories/message-dialog-factory.js?ver=30
4825.5849999841
5299.7850000393
1257
5555
200
application/javascript
Script
https://www.ceeol.com/js/modules/directives/common-directives.js?ver=30
4826.0129999835
5300.5450000055
4359
23795
200
application/javascript
Script
https://www.ceeol.com/js/libs/jquery.storageapi.min.js?ver=30
4826.9619999919
5326.6719999956
2422
6973
200
application/javascript
Script
https://www.ceeol.com/js/libs/angular.min.js?ver=30
4835.5509999674
5394.3770000478
39826
106897
200
application/javascript
Script
https://www.ceeol.com/api/image/GetSlideImage/picture_your-online-archive_1_2.jpg
4891.2420000415
5314.3739999505
39571
39160
200
image/jpg
Image
https://www.ceeol.com/js/libs/patternsRegExp.js?ver=30
5324.0340000484
5801.810999983
1535
2699
200
application/javascript
Script
https://www.ceeol.com/js/libs/masks.js?ver=30
5324.7549999505
5800.9869999951
542
156
200
application/javascript
Script
https://www.ceeol.com/js/libs/bootstrap-typeahead.js?ver=30
5327.9420000035
5801.4200000325
2528
6661
200
application/javascript
Script
https://www.ceeol.com/js/libs/bootstrap-datepicker.js?ver=30
5329.9899999984
5802.2420000052
7855
26995
200
application/javascript
Script
https://www.ceeol.com/js/libs/toastr.min.js?ver=30
5341.2140000146
5818.7750000507
1934
4260
200
application/javascript
Script
https://www.ceeol.com/js/libs/angular-resource.min.js?ver=30
5413.5679999599
5825.0439999392
1986
3327
200
application/javascript
Script
https://www.ceeol.com/js/libs/angular-cookies.min.js?ver=30
5414.2220000504
5817.8230000194
982
825
200
application/javascript
Script
https://www.ceeol.com/api/login/GetItemsCount
5870.3110000351
6392.0020000078
269
11
200
application/json
XHR
https://www.ceeol.com/Shibboleth.sso/DiscoFeed
5871.2929999456
6394.6470000083
4676
4497
200
application/json
XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
2107.477
8.762
2119.127
15.686
2844.464
5.761
2854.747
28.201
2882.974
25.308
2921.005
21.018
3353.107
6.81
3360.684
19.12
3442.331
9.165
3463.52
6.135
3541.646
6.708
3863.672
6.849
4373.542
45.833
4848.698
9.428
4904.272
16.147
5013.288
17.046
5063.347
17.045
5096.607
17.142
5129.942
16.98
5180.024
16.898
5213.275
16.995
5263.28
17.04
5296.665
16.903
5326.89
6.852
5335.837
6.787
5431.99
12.171
5855.561
48.368
5903.969
6.827
5910.968
62.187
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Minify CSS — Potential savings of 2 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Ceeol.com should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/css/custom.css?v6
21720
2066
Minify JavaScript — Potential savings of 2 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Ceeol.com should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/js/modules/main-module.js?ver=30
5436
2210
Remove unused JavaScript
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Enable text compression — Potential savings of 3 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/Shibboleth.sso/DiscoFeed
4497
3540
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 510 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.ceeol.com/
512.894
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Ceeol.com should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://ceeol.com/
630
https://www.ceeol.com/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Ceeol.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.

Diagnostics

Avoids an excessive DOM size — 644 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
644
Maximum DOM Depth
14
Maximum Child Elements
17
Avoid chaining critical requests — 15 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Ceeol.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 1.2 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.ceeol.com/
1482.8
15.76
5.916
https://www.ceeol.com/js/libs/require.js
785.82
703.1
4.88
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
324.368
263.528
5.972
Unattributable
303.016
5.156
0.708
https://www.google-analytics.com/analytics.js
95.364
80.376
5.484
https://www.ceeol.com/js/libs/camera.min.js?ver=30
92.62
69.54
3.328
https://www.ceeol.com/js/main.js?v5
76.096
63.876
1.204
Keep request counts low and transfer sizes small — 83 requests • 2,843 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
83
2911242
Image
30
2297014
Font
4
350721
Script
32
177198
Stylesheet
11
70284
Document
1
9515
Other
5
6510
Media
0
0
Third-party
3
20755
Minimize third-party usage — Third-party code blocked the main thread for 20 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
20066
24.552
689
0
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
img
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.17166452043942
0.046496370160214
0.026726260013351
0.014400450600801
0.011227469959947
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 8 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://www.ceeol.com/js/libs/angular-resource.min.js?ver=30
26160
193
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
21925
124
https://www.ceeol.com/js/libs/require.js
4230
113
https://www.ceeol.com/js/libs/camera.min.js?ver=30
21780
92
https://www.google-analytics.com/analytics.js
2340
84
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
20160
76
https://www.ceeol.com/
1410
63
https://www.ceeol.com/
630
51
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 3.0 s
The time taken for the first image or text on the page to be rendered.

Other

First CPU Idle — 6.1 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 190 ms
Users could experience a delay when interacting with the page.
First Contentful Paint (3G) — 5805 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Remove unused CSS — Potential savings of 35 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Ceeol.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/css/custom.css?v6
21720
19420
https://www.ceeol.com/css/bootstrap.min.css
16803
16141
Serve images in next-gen formats — Potential savings of 219 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910235.png
169734
135742
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910544.png
87604
54682
https://www.ceeol.com/api/image/GetSlideItemImage/picture_welcome-to-ceeol_1_2.png
13931
11219
https://www.ceeol.com/api/image/GetSlideItemImage/picture_your-online-archive_2_4.png
13931
11219
https://www.ceeol.com/api/image/GetSlideItemImage/picture_scholarly-journals-and-ebooks_3_7.png
13931
11219

Diagnostics

Avoid enormous network payloads — Total size was 2,843 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910018.jpg
723029
https://www.ceeol.com/api/image/GetPhotoAlbumCover/picture_georgia-2005_6.jpg
255051
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910649.jpg
173028
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910235.png
170213
https://www.ceeol.com/api/image/getjournalcoverimage?id=karta-19.jpg
148893
https://www.ceeol.com/fonts/fontawesome-webfont.ttf?v=4.5.0
142337
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_894877.jpg
108000
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910250.jpg
104197
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910544.png
88082
https://www.ceeol.com/fonts/OpenSans-Bold.woff
70451
Minimize main-thread work — 3.4 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1270.592
Rendering
852.81200000002
Other
626.608
Style & Layout
446.124
Parse HTML & CSS
137
Script Parsing & Compilation
94.072

Metrics

Speed Index — 11.8 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 15.3 s
The timing of the largest text or image that is painted.
Time to Interactive — 16.2 s
The time taken for the page to become fully interactive.
Cumulative Layout Shift — 0.319
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First Meaningful Paint — 4.7 s
The time taken for the primary content of the page to be rendered.

Opportunities

Eliminate render-blocking resources — Potential savings of 2,070 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Ceeol.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://www.ceeol.com/css/font.css
832
180
https://www.ceeol.com/css/font-awesome.min.css
6486
630
https://www.ceeol.com/css/bootstrap.min.css
16803
930
https://www.ceeol.com/css/jetmenu.css?v2
2534
480
https://www.ceeol.com/css/toastr.css
3041
480
https://www.ceeol.com/css/animate.css
6451
630
https://www.ceeol.com/css/camera.css
2298
180
https://www.ceeol.com/css/layerslider.css
3559
180
https://www.ceeol.com/css/util.carousel.css
2892
180
https://www.ceeol.com/css/homepage.css
3668
180
https://www.ceeol.com/css/custom.css?v6
21720
480
Properly size images — Potential savings of 1,084 KiB
Images can slow down the page's load time. Ceeol.com should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910018.jpg
722550
687286
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910649.jpg
172549
126344
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910250.jpg
103718
87950
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910235.png
169734
77213
https://www.ceeol.com/api/image/GetPhotoAlbumCover/picture_georgia-2005_6.jpg
254581
72749
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910544.png
87604
53159
https://www.ceeol.com/api/image/GetSlideItemImage/picture_welcome-to-ceeol_1_2.png
13931
5457
Defer offscreen images — Potential savings of 1,654 KiB
Time to Interactive can be slowed down by resources on the page. Ceeol.com should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910018.jpg
722550
722550
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910235.png
169734
169734
https://www.ceeol.com/api/image/getjournalcoverimage?id=karta-19.jpg
148451
148451
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_894877.jpg
107521
107521
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_910250.jpg
103718
103718
https://www.ceeol.com/api/image/getjournalcoverimage?id=sociological-studies-10.jpg
56498
56498
https://www.ceeol.com/api/image/getjournalcoverimage?id=balkan-studies-8.jpg
52453
52453
https://www.ceeol.com/api/image/getjournalcoverimage?id=studia-universitatis-babes-bolyai-orthodox-theology-2.jpg
50934
50934
https://www.ceeol.com/api/image/getjournalcoverimage?id=studia-universitatis-babes-bolyai-studia-europaea-1.jpg
47792
47792
https://www.ceeol.com/api/image/GetSlideImage/picture_your-online-archive_1_2.jpg
39160
39160
https://www.ceeol.com/api/image/getjournalcoverimage?id=the-sign-7.jpg
37939
37939
https://www.ceeol.com/api/image/getjournalcoverimage?id=bulgarian-folklore-6.jpg
27626
27626
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_528163.jpg
22152
22152
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_517111.jpg
20447
20447
https://www.ceeol.com/api/image/getjournalcoverimage?id=film-quarterly-13.jpg
20165
20165
https://www.ceeol.com/api/image/GetSlideItemImage/picture_your-online-archive_2_4.png
13931
13931
https://www.ceeol.com/api/image/GetSlideItemImage/picture_scholarly-journals-and-ebooks_3_7.png
13931
13931
https://www.ceeol.com/api/image/getjournalcoverimage?id=slavica-slovaca-12.JPG
12439
12439
https://www.ceeol.com/images/camera-loader.gif
9289
9289
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_906455.jpg
4654
4654
https://www.ceeol.com/api/image/getbookcoverimage?id=document_cover-page-image_904797.jpg
4530
4530
https://www.ceeol.com/api/image/getjournalcoverimage?id=transitions-online-3.jpg
3921
3921
https://www.ceeol.com/images/CEEOL-logo.png
3744
3744

Diagnostics

Serve static assets with an efficient cache policy — 51 resources found
Ceeol.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://www.ceeol.com/fonts/fontawesome-webfont.ttf?v=4.5.0
0
142337
https://www.ceeol.com/fonts/OpenSans-Bold.woff
0
70451
https://www.ceeol.com/fonts/OpenSans-Semibold.woff
0
70146
https://www.ceeol.com/fonts/OpenSans-Regular.woff
0
67787
https://www.ceeol.com/js/libs/angular.min.js?ver=30
0
39826
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
0
33645
https://www.ceeol.com/css/custom.css?v6
0
21720
https://www.ceeol.com/css/bootstrap.min.css
0
16803
https://www.ceeol.com/js/libs/camera.min.js?ver=30
0
11736
https://www.ceeol.com/images/camera-loader.gif
0
9537
https://www.ceeol.com/js/libs/owl.carousel.min.js?ver=30
0
8549
https://www.ceeol.com/js/libs/bootstrap.min.js?ver=30
0
8002
https://www.ceeol.com/js/libs/bootstrap-datepicker.js?ver=30
0
7855
https://www.ceeol.com/images/CEEOL-logo-header.png
0
7760
https://www.ceeol.com/js/libs/require.js
0
6553
https://www.ceeol.com/css/font-awesome.min.css
0
6486
https://www.ceeol.com/css/animate.css
0
6451
https://www.ceeol.com/js/modules/main-module.js?ver=30
0
5436
https://www.ceeol.com/images/camera_skins.png
0
4745
https://www.ceeol.com/js/modules/directives/common-directives.js?ver=30
0
4359
https://www.ceeol.com/images/CEEOL-logo.png
0
3992
https://www.ceeol.com/css/homepage.css
0
3668
https://www.ceeol.com/css/layerslider.css
0
3559
https://www.ceeol.com/js/libs/jquery-migrate-1.2.1.min.js?ver=30
0
3380
https://www.ceeol.com/css/toastr.css
0
3041
https://www.ceeol.com/css/util.carousel.css
0
2892
https://www.ceeol.com/css/jetmenu.css?v2
0
2534
https://www.ceeol.com/js/libs/bootstrap-typeahead.js?ver=30
0
2528
https://www.ceeol.com/js/app-init.js?ver=30
0
2503
https://www.ceeol.com/js/libs/jquery.storageapi.min.js?ver=30
0
2422
https://www.ceeol.com/css/camera.css
0
2298
https://www.ceeol.com/js/libs/angular-resource.min.js?ver=30
0
1986
https://www.ceeol.com/js/libs/toastr.min.js?ver=30
0
1934
https://www.ceeol.com/js/common.js?ver=30
0
1713
https://www.ceeol.com/js/libs/jquery.easing.1.3.js?ver=30
0
1585
https://www.ceeol.com/js/libs/patternsRegExp.js?ver=30
0
1535
https://www.ceeol.com/js/main.js?v5
0
1376
https://www.ceeol.com/js/modules/controllers/register-customer.js?ver=30
0
1329
https://www.ceeol.com/js/modules/factories/message-dialog-factory.js?ver=30
0
1257
https://www.ceeol.com/js/libs/jetmenu.js?ver=30
0
1226
https://www.ceeol.com/js/libs/angular-cookies.min.js?ver=30
0
982
https://www.ceeol.com/js/modules/factories/login-factory.js?ver=30
0
892
https://www.ceeol.com/js/modules/factories/toastr-factory.js?ver=30
0
873
https://www.ceeol.com/css/font.css
0
832
https://www.ceeol.com/js/modules/factories/preorder-factory.js?ver=30
0
816
https://www.ceeol.com/js/homepage.js?ver=30
0
789
https://www.ceeol.com/js/modules/factories/customer-factory.js?ver=30
0
742
https://www.ceeol.com/js/modules/factories/suggestedwork-factory.js?ver=30
0
702
https://www.ceeol.com/js/modules/factories/shopping-cart-factory.js?ver=30
0
678
https://www.ceeol.com/js/libs/masks.js?ver=30
0
542
https://www.google-analytics.com/analytics.js
7200000
19447
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://www.ceeol.com/fonts/OpenSans-Regular.woff
569.37200005632
https://www.ceeol.com/fonts/fontawesome-webfont.ttf?v=4.5.0
570.72700001299
https://www.ceeol.com/fonts/OpenSans-Bold.woff
468.69100001641
https://www.ceeol.com/fonts/OpenSans-Semibold.woff
657.09300001618
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
URL Location
https://www.ceeol.com/js/libs/jquery-1.11.1.min.js?ver=30
line: 2
68

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of ceeol.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Ceeol.com may provide assistance to deaf or hearing-impaired users with captions on videos.
`<video>` elements contain a `<track>` element with `[kind="description"]`
Ceeol.com may provide relevant information that dialogue cannot, by using audio descriptions.

Contrast

Names and labels

Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img
Form elements do not have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
71

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that ceeol.com should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.11.1
RequireJS
2.1.14
AngularJS
1.2.22
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://www.ceeol.com/js/libs/angular.min.js?ver=30
https://www.ceeol.com/js/libs/angular.min.js.map
https://www.ceeol.com/js/libs/angular-resource.min.js?ver=30
https://www.ceeol.com/js/libs/angular-resource.min.js.map
https://www.ceeol.com/js/libs/angular-cookies.min.js?ver=30
https://www.ceeol.com/js/libs/angular-cookies.min.js.map

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://ceeol.com/
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Includes front-end JavaScript libraries with known security vulnerabilities — 22 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
4
Medium
18
High

Audits

Serves images with low resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
URL Displayed size Actual size Expected size
https://www.ceeol.com/images/CEEOL-logo-header.png
331 x 36
460 x 50
869 x 95
79

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for ceeol.com. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of ceeol.com on mobile screens.
Document uses legible font sizes — 99.74% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
.login-links li a strong
0.11%
10px
small, .small
0.09%
10.2px
.cookie-text button
0.06%
11px
99.74%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Links do not have descriptive text — 1 link found
Make use of descriptive link text to assist search engines in understanding the content.
Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img

Mobile Friendly

Tap targets are not sized appropriately — 50% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
320x24
320x25
320x25
320x25
320x25
320x25
320x25
320x25
320x25
320x25
320x25
320x25
320x25
320x25

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
21

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of ceeol.com. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of ceeol.com on mobile screens.
Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.

Fast and reliable

Page load is not fast enough on mobile networks — Interactive at 16.2 s
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.
Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.
`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://ceeol.com/
Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Web app manifest does not meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 13.95.230.73
Continent:
Country:
Region:
City:
Longitude:
Latitude:
Currencies:
Languages:

Web Hosting Provider

Name IP Address
Microsoft Corporation
Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
Ascio Technologies, Inc 141.193.213.20
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating: 3.8/5
WOT Trustworthiness: 76/100
WOT Child Safety: 83/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: www.ceeol.com
Issued By: Go Daddy Secure Certificate Authority - G2
Valid From: 3rd March, 2020
Valid To: 13th March, 2022
Subject: CN = www.ceeol.com
O = Central and Eastern European Online Library GmbH
L = Frankfurt am Main
S = DE
Hash: 7dcaa85d
Issuer: CN = Go Daddy Secure Certificate Authority - G2
OU = http://certs.godaddy.com/repository/
O = GoDaddy.com, Inc.
S = US
Version: 2
Serial Number: 9480933398908260914
Serial Number (Hex): 83930AB1B5105232
Valid From: 3rd March, 2024
Valid To: 13th March, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:40:C2:BD:27:8E:CC:34:83:30:A2:33:D7:FB:6C:B3:F0:B4:2C:80:CE
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://crl.godaddy.com/gdig2s3-15.crl

Certificate Policies: Policy: 2.16.840.1.114413.1.7.23.3
CPS: http://certificates.godaddy.com/repository/
Policy: 2.23.140.1.1

Authority Information Access: OCSP - URI:http://ocsp.godaddy.com/
CA Issuers - URI:http://certificates.godaddy.com/repository/gdig2.crt

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : A4:B9:09:90:B4:18:58:14:87:BB:13:A2:CC:67:70:0A:
3C:35:98:04:F9:1B:DF:B8:E3:77:CD:0E:C8:0D:DC:10
Timestamp : Mar 3 19:10:44.725 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:3A:B2:C9:1D:99:40:5D:7E:52:09:42:35:
33:16:90:9F:43:FD:01:28:B3:3E:18:EB:E0:65:0C:F0:
3D:22:16:FF:02:21:00:A8:37:34:C7:CB:97:0F:53:CF:
E7:DF:5F:7F:26:3A:BF:E2:41:24:B9:35:74:D5:06:CB:
B7:2C:89:EF:7F:D5:3E
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : EE:4B:BD:B7:75:CE:60:BA:E1:42:69:1F:AB:E1:9E:66:
A3:0F:7E:5F:B0:72:D8:83:00:C4:7B:89:7A:A8:FD:CB
Timestamp : Mar 3 19:10:45.553 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:2E:3D:74:4F:26:33:89:C1:F8:B5:9F:DE:
53:72:0E:B2:F1:74:60:D8:FA:0F:CF:FA:20:F0:B5:E0:
05:14:87:92:02:21:00:B9:8E:A8:1B:D6:57:31:3A:05:
6B:BA:AC:45:2F:48:08:C3:AC:0D:87:1B:B3:49:77:E5:
DE:59:1D:D9:44:9C:FD
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 56:14:06:9A:2F:D7:C2:EC:D3:F5:E1:BD:44:B2:3E:C7:
46:76:B9:BC:99:11:5C:C0:EF:94:98:55:D6:89:D0:DD
Timestamp : Mar 3 19:10:45.997 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:2F:26:64:96:5A:BD:CE:DE:83:9E:30:A1:
DC:E8:A6:D4:B6:D8:20:EC:73:03:13:90:5E:C4:7B:78:
40:4C:9A:75:02:20:19:70:87:89:22:40:C8:5C:8F:CE:
C7:A1:06:F9:5F:58:86:87:5C:8F:8E:9A:D8:3A:F4:77:
11:4F:CB:FC:60:EB
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:ceeol.com
DNS:www.ceeol.com
Technical

DNS Lookup

A Records

Host IP Address Class TTL
ceeol.com. 13.95.230.73 IN 21599

NS Records

Host Nameserver Class TTL
ceeol.com. ns3.arcor-ip.de. IN 21599
ceeol.com. ns1.arcor-ip.de. IN 21599
ceeol.com. ns2.arcor-ip.de. IN 21599

MX Records

Priority Host Server Class TTL
100 ceeol.com. ceeol-com.mail.protection.outlook.com. IN 3599

SOA Records

Domain Name Primary NS Responsible Email TTL
ceeol.com. ns1.arcor-ip.de. hostmaster.adm.arcor.net. 21599

TXT Records

Host Value Class TTL
ceeol.com. v=spf1 IN 21599
ceeol.com. djmiqsrj88isgbk1li6gfikc71 IN 21599
ceeol.com. MS=ms85154479 IN 21599

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/8.5
Date: 25th November, 2020
Content-Length: 46757
X-AspNet-Version: 4.0.30319
Set-Cookie: *
X-Powered-By: ASP.NET

Whois Lookup

Created: 10th March, 2000
Changed: 11th March, 2020
Expires: 10th March, 2021
Registrar: Ascio Technologies, Inc
Status: ok
Nameservers: ns1.arcor-ip.de
ns2.arcor-ip.de
ns3.arcor-ip.de
Owner Name: Not Disclosed
Owner Organization: Not Disclosed
Owner Street: Not Disclosed
Owner Post Code: Not Disclosed
Owner City: Not Disclosed
Owner State: DE
Owner Country: DE
Owner Phone: Not Disclosed
Owner Email: https://whoiscontact.ascio.com?domainname=ceeol.com
Admin Name: Not Disclosed
Admin Organization: Not Disclosed
Admin Street: Not Disclosed
Admin Post Code: Not Disclosed
Admin City: Not Disclosed
Admin State: Not Disclosed
Admin Country: Not Disclosed
Admin Phone: Not Disclosed
Admin Email: Not Disclosed
Tech Name: Not Disclosed
Tech Organization: Not Disclosed
Tech Street: Not Disclosed
Tech Post Code: Not Disclosed
Tech City: Not Disclosed
Tech State: Not Disclosed
Tech Country: Not Disclosed
Tech Phone: Not Disclosed
Tech Email: Not Disclosed
Full Whois: Domain Name: ceeol.com
Registry Domain ID: 22053281_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.ascio.com
Registrar URL: http://www.ascio.com
Updated Date: 2020-03-11T00:31:50Z
Creation Date: 2000-03-10T04:50:52Z
Registrar Registration Expiration Date: 2021-03-10T00:00:00Z
Registrar: Ascio Technologies, Inc
Registrar IANA ID: 106
Registrar Abuse Contact Email: abuse@ascio.com
Registrar Abuse Contact Phone: +44 (20) 81583881
Domain Status: OK https://icann.org/epp#ok

Registry Registrant ID: Not Disclosed
Registrant Name: Not Disclosed
Registrant Organization: Not Disclosed
Registrant Street: Not Disclosed
Registrant City: Not Disclosed
Registrant State/Province: DE
Registrant Postal Code: Not Disclosed
Registrant Country: DE
Registrant Phone: Not Disclosed
Registrant Phone Ext: Not Disclosed
Registrant Fax: Not Disclosed
Registrant Fax Ext: Not Disclosed
Registrant Email: https://whoiscontact.ascio.com?domainname=ceeol.com

Registry Admin ID: Not Disclosed
Admin Name: Not Disclosed
Admin Organization: Not Disclosed
Admin Street: Not Disclosed
Admin City: Not Disclosed
Admin State/Province: Not Disclosed
Admin Postal Code: Not Disclosed
Admin Country: Not Disclosed
Admin Phone: Not Disclosed
Admin Phone Ext: Not Disclosed
Admin Fax: Not Disclosed
Admin Fax Ext: Not Disclosed
Admin Email: Not Disclosed

Registry Tech ID: Not Disclosed
Tech Name: Not Disclosed
Tech Organization: Not Disclosed
Tech Street: Not Disclosed
Tech City: Not Disclosed
Tech State/Province: Not Disclosed
Tech Postal Code: Not Disclosed
Tech Country: Not Disclosed
Tech Phone: Not Disclosed
Tech Phone Ext: Not Disclosed
Tech Fax: Not Disclosed
Tech Fax Ext: Not Disclosed
Tech Email: Not Disclosed

Name Server: ns1.arcor-ip.de
Name Server: ns2.arcor-ip.de
Name Server: ns3.arcor-ip.de
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2020-11-25T03:32:01Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

The data in Ascio Technologies' WHOIS database is provided
by Ascio Technologies for information purposes only. By submitting
a WHOIS query, you agree that you will use this data only for lawful
purpose. In addition, you agree not to:
(a) use the data to allow, enable, or otherwise support any marketing
activities, regardless of the medium used. Such media include but are
not limited to e-mail, telephone, facsimile, postal mail, SMS, and
wireless alerts; or
(b) use the data to enable high volume, automated, electronic processes
that send queries or data to the systems of any Registry Operator or
ICANN-Accredited registrar, except as reasonably necessary to register
domain names or modify existing registrations.
(c) sell or redistribute the data except insofar as it has been
incorporated into a value-added product or service that does not permit
the extraction of a substantial portion of the bulk data from the value-added
product or service for use by other parties.
Ascio Technologies reserves the right to modify these terms at any time.
Ascio Technologies cannot guarantee the accuracy of the data provided.
By accessing and using Ascio Technologies WHOIS service, you agree to these terms.

Nameservers

Name IP Address
ns1.arcor-ip.de 145.253.2.19
ns2.arcor-ip.de 145.253.2.80
ns3.arcor-ip.de 145.253.3.171
Related

Subdomains

Similar Sites

Domain Valuation Snoop Score
0/5
0/5
0/5
$9,775 USD 3/5
0/5

Organic Search (US) Competitors

Backlink Competitors

Sites with the same domain name

Domain Valuation Snoop Score
0/5

Sites hosted on the same IP address