Tools & Wizards About Us
11klasov.ru screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

11klasov.ru

Скачать школьные учебники онлайн в электронном виде (PDF и DjVu)

Page Load Speed

758 ms in total

First Response

327 ms

Resources Loaded

431 ms

Page Rendered

0 ms

11klasov.ru screenshot

About Website

Welcome to 11klasov.ru homepage info - get ready to check 11 Klasov best content for Russia right away, or after learning these important things about 11klasov.ru

Электронные учебники онлайн для школы, ГИА, ЕГЭ, ГДЗ решебники, учебные пособия скачать бесплатно в PDF и DjVu формате.

Visit 11klasov.ru

Key Findings

We analyzed 11klasov.ru page load time and found that the first response time was 327 ms and then it took 431 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

11klasov.ru performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

59/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value2,690 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value6.6 s

57/100

10%

Network Requests Diagram

11klasov.ru

327 ms

11klasov.net

63 ms

challenges.css

19 ms

favicon.ico

23 ms

v1

15 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 14% of them (1 request) were addressed to the original 11klasov.ru, 86% (6 requests) were made to 11klasov.net. The less responsive or slowest element that took the longest time to load (327 ms) belongs to the original domain 11klasov.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.6 kB (35%)

Content Size

10.3 kB

After Optimization

6.7 kB

  • HTML
  • CSS

In fact, the total size of 11klasov.ru main page is 10.3 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 5% of websites need less resources to load. HTML takes 7.6 kB which makes up the majority of the site volume.

HTML Optimization

-46%

Potential reduce by 3.5 kB

  • Original 7.6 kB
  • After minification 7.2 kB
  • After compression 4.1 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 3.5 kB or 46% of the original size.

CSS Optimization

-1%

Potential reduce by 19 B

  • Original 2.6 kB
  • After minification 2.6 kB
  • After compression 2.6 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. 11klasov.ru has all CSS files already compressed.

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 11 Klasov. According to our analytics all requests are already optimized.

Network Requests Diagram

11klasov.ru

11klasov.ru

327 ms

11klasov.net

11klasov.net

63 ms

challenges.css

challenges.css

19 ms

favicon.ico

favicon.ico

23 ms

v1

v1

15 ms

transparent.gif

transparent.gif

3 ms

transparent.gif

transparent.gif

6 ms

Accessibility Review

11klasov.ru accessibility score

66

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

Document doesn't have a <title> element

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

11klasov.ru best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

11klasov.ru SEO score

75

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Document doesn't have a <title> element

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 11klasov.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it does not match the claimed English language. Our system also found out that 11klasov.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.

Social Sharing Optimization

11klasov.ru

Open Graph description is not detected on the main page of 11 Klasov. 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: