Access ruscoal.ru. АО «Русский Уголь»

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value13.1 s

0/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0.213

58/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

ruscoal.ru

531 ms

www.ruscoal.ru

1119 ms

font-awesome.min.css

402 ms

slick.css

404 ms

slick-theme.css

405 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 98% of them (58 requests) were addressed to the original Ruscoal.ru, 2% (1 request) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Ruscoal.ru.

Content Size

3.8 MB

After Optimization

3.0 MB

In fact, the total size of Ruscoal.ru main page is 3.8 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. 55% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 224.4 kB

Original 291.1 kB
After minification 284.3 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 224.4 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 59.7 kB

Original 2.9 MB
After minification 2.8 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. Ruscoal images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 325.0 kB

Original 451.9 kB
After minification 428.0 kB
After compression 126.8 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 325.0 kB or 72% of the original size.

CSS Optimization

-83%

Potential reduce by 183.8 kB

Original 222.4 kB
After minification 210.5 kB
After compression 38.6 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. Ruscoal.ru needs all CSS files to be minified and compressed as it can save up to 183.8 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ruscoal. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 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

ARIA input fields do not have accessible names

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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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 Ruscoal.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 Ruscoal.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

ruscoal.ru

Open Graph data is detected on the main page of Ruscoal. 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

АО «Русский Уголь»

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

ruscoal.ru

www.ruscoal.ru

font-awesome.min.css

slick.css

slick-theme.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

ruscoal.ru

www.ruscoal.ru

font-awesome.min.css

slick.css

slick-theme.css

jquery-ui.min.css

style.css

jquery-1.12.4.min.js

jquery.easing.1.3.js

slick.min.js

jquery.jvectormap-2.0.3.min.js

jquery.jvectormap.ru_merc.js

ruscoal-neo.js

style.min.css

logo.png

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ajax-loader.gif

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