6.3 sec in total
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164 ms
Welcome to bookoteka.ru homepage info - get ready to check Bookoteka best content for Russia right away, or after learning these important things about bookoteka.ru
Электронно-библиотечная система BOOKoteka - это ресурс, включающий электронно-библиотечную систему, печатные и электронные книги. ЭБС BOOKoteka – это прежде всего обеспечение образовательного процесс...
Visit bookoteka.ruWe analyzed Bookoteka.ru page load time and found that the first response time was 1 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
bookoteka.ru performance score
name
value
score
weighting
Value2.0 s
85/100
10%
Value2.0 s
97/100
25%
Value2.1 s
99/100
10%
Value0 ms
100/100
30%
Value1.412
0/100
15%
Value2.0 s
99/100
10%
1018 ms
586 ms
397 ms
981 ms
595 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 92% of them (59 requests) were addressed to the original Bookoteka.ru, 6% (4 requests) were made to Mc.yandex.ru and 2% (1 request) were made to Free-kassa.ru. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Bookoteka.ru.
Page size can be reduced by 277.8 kB (52%)
538.2 kB
260.4 kB
In fact, the total size of Bookoteka.ru main page is 538.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Javascripts take 226.7 kB which makes up the majority of the site volume.
Potential reduce by 19.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 19.3 kB or 81% of the original size.
Potential reduce by 18.9 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. Obviously, Bookoteka needs image optimization as it can save up to 18.9 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 147.0 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 147.0 kB or 65% of the original size.
Potential reduce by 92.6 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. Bookoteka.ru needs all CSS files to be minified and compressed as it can save up to 92.6 kB or 84% of the original size.
Number of requests can be reduced by 5 (25%)
20
15
The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bookoteka. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.
bookoteka.ru
1018 ms
bootstrap.min.css
586 ms
jquery.fancybox.css
397 ms
BOOKoteka.css@v=201412031
981 ms
bootstrap-responsive.css@v=20140828
595 ms
jquery-1.10.1.min.js
1357 ms
bootstrap.min.js
794 ms
jquery.fancybox.pack.js
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owl.carousel.min.js
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custom.js@v=20150423
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1914 ms
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85 ms
bookoteka.ru 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.
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.
bookoteka.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
bookoteka.ru SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Page is blocked from indexing
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
Tap targets are not sized appropriately
RU
RU
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bookoteka.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Bookoteka.ru 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.
bookoteka.ru
Open Graph description is not detected on the main page of Bookoteka. 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: