Tools & Wizards About Us

Report Summary

  • 97

    Performance

    Renders faster than
    94% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 95

    SEO

    Google-friendlier than
    90% of websites

ilibrary.ru

Интернет-библиотека Алексея Комарова

Page Load Speed

2.9 sec in total

First Response

513 ms

Resources Loaded

2.2 sec

Page Rendered

176 ms

About Website

Click here to check amazing Ilibrary content for Russia. Otherwise, check out these important facts you probably never knew about ilibrary.ru

Интернет-библиотека Алексея Комарова (или просто библиотека Комарова) - одна из старейших и известнейших электронных библиотек Российского интернета, основана в 1996 году

Visit ilibrary.ru

Key Findings

We analyzed Ilibrary.ru page load time and found that the first response time was 513 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

ilibrary.ru performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value2.3 s

99/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

Network Requests Diagram

ilibrary.ru

513 ms

ilibrary.ru

512 ms

styles4.css

248 ms

rightbanners3.js

496 ms

3_0_FFFFF0FF_E0E0D0FF_0_pageviews

691 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 57% of them (4 requests) were addressed to the original Ilibrary.ru, 14% (1 request) were made to Informer.yandex.ru and 14% (1 request) were made to Counter.yadro.ru. The less responsive or slowest element that took the longest time to load (821 ms) relates to the external source Mc.yandex.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 43.1 kB (29%)

Content Size

148.8 kB

After Optimization

105.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ilibrary.ru main page is 148.8 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. Only 10% of websites need less resources to load. Javascripts take 85.3 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 21.9 kB

  • Original 35.8 kB
  • After minification 35.7 kB
  • After compression 13.9 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 21.9 kB or 61% of the original size.

Image Optimization

-25%

Potential reduce by 392 B

  • Original 1.6 kB
  • After minification 1.2 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, Ilibrary needs image optimization as it can save up to 392 B or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 85.3 kB
  • After minification 85.3 kB
  • After compression 85.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-80%

Potential reduce by 20.9 kB

  • Original 26.0 kB
  • After minification 23.9 kB
  • After compression 5.1 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. Ilibrary.ru needs all CSS files to be minified and compressed as it can save up to 20.9 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ilibrary. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

ilibrary.ru accessibility score

89

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

Links do not have a discernible name

Best Practices

ilibrary.ru best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

ilibrary.ru SEO score

95

Search Engine Optimization Advices

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    RU

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ilibrary.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 Ilibrary.ru main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Ilibrary. 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: