Access channel4.ru. 4 канал - Екатеринбург

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value15.1 s

1/100

10%

TBT (Total Blocking Time)

Value2,850 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.599

11/100

15%

TTI (Time to Interactive)

Value12.8 s

13/100

10%

www.channel4.ru

1056 ms

uss_style_v3.5.0.css

681 ms

jquery-1.3.2.min.js

712 ms

uss-photo-v3.5.0.js

632 ms

uss-eshop-v3.5.0.js

603 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 93% of them (99 requests) were addressed to the original Channel4.ru, 5% (5 requests) were made to U35843.netangels.ru and 2% (2 requests) were made to Counter.yadro.ru. The less responsive or slowest element that took the longest time to load (5.3 sec) belongs to the original domain Channel4.ru.

Content Size

1.8 MB

After Optimization

1.5 MB

In fact, the total size of Channel4.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. 30% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 30.0 kB

Original 38.9 kB
After minification 38.3 kB
After compression 8.9 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 30.0 kB or 77% of the original size.

Image Optimization

-3%

Potential reduce by 48.2 kB

Original 1.4 MB
After minification 1.4 MB

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. Channel 4 images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 104.9 kB

Original 142.7 kB
After minification 117.1 kB
After compression 37.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 104.9 kB or 73% of the original size.

CSS Optimization

-87%

Potential reduce by 147.9 kB

Original 170.6 kB
After minification 137.3 kB
After compression 22.7 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. Channel4.ru needs all CSS files to be minified and compressed as it can save up to 147.9 kB or 87% of the original size.

Requests Now

102

After Optimization

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Channel 4. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

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

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 Channel4.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 Channel4.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

channel4.ru

Open Graph description is not detected on the main page of Channel 4. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

4 канал - Екатеринбург | Главная страница

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

www.channel4.ru

uss_style_v3.5.0.css

jquery-1.3.2.min.js

uss-photo-v3.5.0.js

uss-eshop-v3.5.0.js

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

www.channel4.ru

uss_style_v3.5.0.css

jquery-1.3.2.min.js

uss-photo-v3.5.0.js

uss-eshop-v3.5.0.js

jquery.form.js

style.css

slider.js

func.js

swfobject.js

erlyplayer.js

uss_shop_3.5.0.css

uss_forum_3.5.0.css

g-png.ie.css

news_bnr.jpg

Facebook1.png

Twitter1.png

Vkontakte1.png

Youtube1.png

site-fon-ekat-revizorro-show-01-rdy.jpg

top_bg.png

bottom_bg.png

logo.png

age16.png

lh_live.png

lh_auth.png

dashed.png

lh_today.png

lh_menu.png

lh_pol.png

lh_submenu.png

lh_search.png

lh_uss_submit.png

My_4ka.jpg

dark.png

sl_r.jpg

344x420-ekat-revizorro-show-banner-01.jpg

ue_vanch.jpg

344x420-ekat-OiR-krugosvetka-banner-01.jpg

662x354-ekat-revizorro-show-banner-01.jpg

laststories_block.png

laststories_block_title.png

lpr_last_story_h3.png