4.7 sec in total
500 ms
3.7 sec
544 ms
Click here to check amazing World EBook Library content for Czech Republic. Otherwise, check out these important facts you probably never knew about worldebooklibrary.com
World eBook Library - eBooks
Visit worldebooklibrary.comWe analyzed Worldebooklibrary.com page load time and found that the first response time was 500 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
worldebooklibrary.com performance score
name
value
score
weighting
Value3.5 s
33/100
10%
Value10.5 s
0/100
25%
Value6.7 s
36/100
10%
Value90 ms
98/100
30%
Value0.001
100/100
15%
Value7.6 s
46/100
10%
500 ms
634 ms
517 ms
508 ms
519 ms
Our browser made a total of 72 requests to load all elements on the main page. We found that 6% of them (4 requests) were addressed to the original Worldebooklibrary.com, 74% (53 requests) were made to Read.images.worldlibrary.net and 18% (13 requests) were made to Ebook2.worldlibrary.net. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Read.images.worldlibrary.net.
Page size can be reduced by 1.0 MB (34%)
2.9 MB
1.9 MB
In fact, the total size of Worldebooklibrary.com main page is 2.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 29.4 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 6.7 kB, which is 18% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 29.4 kB or 80% of the original size.
Potential reduce by 46.6 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. World EBook Library images are well optimized though.
Potential reduce by 636.5 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 636.5 kB or 76% of the original size.
Potential reduce by 296.6 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Worldebooklibrary.com needs all CSS files to be minified and compressed as it can save up to 296.6 kB or 86% of the original size.
Number of requests can be reduced by 27 (39%)
69
42
The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of World EBook Library. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
worldebooklibrary.com
500 ms
bootstrap.css
634 ms
animate.css
517 ms
bannerscollection_zoominout.css
508 ms
modernizr.js
519 ms
jquery1.8.3.js
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bannerscollection_zoominout.js
528 ms
wel.css
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font-awesome.min.css
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bootstrap.js
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jquery.inview.min.js
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jquery.prettyPhoto.js
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isotope.js
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jquery.maximage.js
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jquery.bxslider.min.js
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appear.js
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wel.js
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jquery-ui-1.10.4.custom.min.js
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jquery-ui-1.10.4.custom.min.css
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greybox.css
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pattern.png
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loader.gif
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students-int-journals.jpg
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studends-int-books.jpg
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facebook-white.png
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myriadpro-semibold_opentype-webfont.woff
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hand.cur
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jquery.jcarousel-1.0.1.css
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detail-1.0.0.css
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books.css
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worldebooklibrary.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
worldebooklibrary.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
worldebooklibrary.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Worldebooklibrary.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Worldebooklibrary.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
worldebooklibrary.com
Open Graph description is not detected on the main page of World EBook Library. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: