Tools & Wizards About Us

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

schoolbooks.litres.ru

Литрес – сервис электронных и аудиокниг, скачать в fb2 и mp3, читать и слушать онлайн на Litres

Page Load Speed

2.4 sec in total

First Response

421 ms

Resources Loaded

1.9 sec

Page Rendered

64 ms

About Website

Welcome to schoolbooks.litres.ru homepage info - get ready to check Schoolbooks Litres best content for Russia right away, or after learning these important things about schoolbooks.litres.ru

Литрес – цифровой сервис электронных и аудиокниг, а также другого контента: подкасты, спектакли, интервью – скачивай, читай и слушай на любых устройствах. На Litres вы найдете рейтинги лучших книг, от...

Visit schoolbooks.litres.ru

Key Findings

We analyzed Schoolbooks.litres.ru page load time and found that the first response time was 421 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

schoolbooks.litres.ru performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

24/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value3,720 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.091

92/100

15%

TTI (Time to Interactive)

Value20.9 s

1/100

10%

Network Requests Diagram

schoolbooks.litres.ru

421 ms

www.litres.ru

405 ms

index.css

29 ms

view.js

92 ms

index.js

181 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 13% of them (1 request) were addressed to the original Schoolbooks.litres.ru, 63% (5 requests) were made to Litres.ru and 25% (2 requests) were made to Check.ddos-guard.net. The less responsive or slowest element that took the longest time to load (421 ms) belongs to the original domain Schoolbooks.litres.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 127.0 kB (63%)

Content Size

200.3 kB

After Optimization

73.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Schoolbooks.litres.ru main page is 200.3 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. Javascripts take 197.1 kB which makes up the majority of the site volume.

HTML Optimization

-44%

Potential reduce by 664 B

  • Original 1.5 kB
  • After minification 1.5 kB
  • After compression 837 B

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 664 B or 44% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 136 B
  • After minification 136 B

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. Schoolbooks Litres images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 125.4 kB

  • Original 197.1 kB
  • After minification 197.1 kB
  • After compression 71.7 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 125.4 kB or 64% of the original size.

CSS Optimization

-61%

Potential reduce by 966 B

  • Original 1.6 kB
  • After minification 1.6 kB
  • After compression 624 B

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. Schoolbooks.litres.ru needs all CSS files to be minified and compressed as it can save up to 966 B or 61% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Schoolbooks Litres. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

schoolbooks.litres.ru accessibility score

71

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[role] values are not valid

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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.

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

schoolbooks.litres.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

schoolbooks.litres.ru SEO score

91

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

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Schoolbooks.litres.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Schoolbooks.litres.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

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