Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

rsu.ru

Южный федеральный университет

Page Load Speed

12 sec in total

First Response

792 ms

Resources Loaded

10.7 sec

Page Rendered

538 ms

rsu.ru screenshot

About Website

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

Visit rsu.ru

Key Findings

We analyzed Rsu.ru page load time and found that the first response time was 792 ms and then it took 11.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

rsu.ru performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.7 s

2/100

10%

LCP (Largest Contentful Paint)

Value17.4 s

0/100

25%

SI (Speed Index)

Value44.2 s

0/100

10%

TBT (Total Blocking Time)

Value29,910 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value153.5 s

0/100

10%

Network Requests Diagram

rsu.ru

792 ms

google_font1.css

604 ms

google_font2.css

602 ms

main1501.css

1211 ms

main.diff.css

603 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 12% of them (6 requests) were addressed to the original Rsu.ru, 75% (39 requests) were made to Sfedu.ru and 6% (3 requests) were made to Top-fwz1.mail.ru. The less responsive or slowest element that took the longest time to load (8.7 sec) relates to the external source Sfedu.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 931.6 kB (11%)

Content Size

8.5 MB

After Optimization

7.6 MB

In fact, the total size of Rsu.ru main page is 8.5 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. 45% of websites need less resources to load. Images take 8.1 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 40.5 kB

  • Original 50.7 kB
  • After minification 38.9 kB
  • After compression 10.2 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. This page needs HTML code to be minified as it can gain 11.8 kB, which is 23% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 40.5 kB or 80% of the original size.

Image Optimization

-8%

Potential reduce by 671.7 kB

  • Original 8.1 MB
  • After minification 7.4 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. Rsu images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 138.0 kB

  • Original 266.3 kB
  • After minification 245.4 kB
  • After compression 128.3 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 138.0 kB or 52% of the original size.

CSS Optimization

-85%

Potential reduce by 81.5 kB

  • Original 95.4 kB
  • After minification 76.6 kB
  • After compression 13.9 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. Rsu.ru needs all CSS files to be minified and compressed as it can save up to 81.5 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (18%)

Requests Now

50

After Optimization

41

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rsu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

rsu.ru accessibility score

84

Accessibility Issues

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

Links do not have a discernible name

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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

rsu.ru best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

rsu.ru SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    RU

  • Encoding

    WINDOWS-1251

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

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