Access biblio.litres.ru. Литрес – сервис электронных и аудиокниг, скачать в fb2 и mp3, читать и слушать онлайн на Litres

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

21/100

25%

SI (Speed Index)

Value16.1 s

0/100

10%

TBT (Total Blocking Time)

Value53,590 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.091

92/100

15%

TTI (Time to Interactive)

Value79.7 s

0/100

10%

biblio.litres.ru

426 ms

biblio.litres.ru

916 ms

polyfill.min.js

694 ms

129e7ffd6a6bfb88.css

283 ms

3cb56bb37ea59e04.css

421 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 38% of them (36 requests) were addressed to the original Biblio.litres.ru, 61% (59 requests) were made to Cdn.litres.ru and 1% (1 request) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source Cdn.litres.ru.

Content Size

1.8 MB

After Optimization

1.2 MB

In fact, the total size of Biblio.litres.ru main page is 1.8 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. 50% of websites need less resources to load. Javascripts take 779.0 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 618.0 kB

Original 684.8 kB
After minification 680.1 kB
After compression 66.7 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 618.0 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 286.1 kB
After minification 286.1 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. Biblio Litres images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 5.1 kB

Original 779.0 kB
After minification 779.0 kB
After compression 773.9 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

-2%

Potential reduce by 871 B

Original 39.1 kB
After minification 39.1 kB
After compression 38.3 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. Biblio.litres.ru has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biblio Litres. 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 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[role] values are not valid

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.

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

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

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

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Links are not crawlable

High

Page is blocked from indexing

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

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

RU
Language Claimed

RU
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Biblio.litres.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 Biblio.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

biblio.litres.ru

Open Graph data is detected on the main page of Biblio Litres. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

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

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

biblio.litres.ru

biblio.litres.ru

polyfill.min.js

129e7ffd6a6bfb88.css

3cb56bb37ea59e04.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

biblio.litres.ru

biblio.litres.ru

polyfill.min.js

129e7ffd6a6bfb88.css

3cb56bb37ea59e04.css

40c0e1b56f1049f9.css

23c81d9b34ad3ad9.css

polyfills-78c92fac7aa8fdd8.js

webpack-ed7219740d5a616e.js

framework-ec1c81474308c4d5.js

main-39dec9c2c03e97ee.js

_app-fef62ff179ac109a.js

3955-516d3bee8faaaa3f.js

232-710c5455660828f5.js

2414-1c496c65311f9d32.js

9070-3396778eb20550bd.js

9074-dc4e10ad86114b70.js

2783-4c46f924ece93953.js

5893-c62f5140ccdb5a41.js

8890-1849e4a8500247ee.js

4249-819998ffdf0830d3.js

index-61b93bf3056cb61e.js

_buildManifest.js

_ssgManifest.js

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