Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

edu.olimpiada.ru

Курситет - Добро пожаловать

Page Load Speed

3 sec in total

First Response

489 ms

Resources Loaded

2.4 sec

Page Rendered

127 ms

edu.olimpiada.ru screenshot

About Website

Click here to check amazing Edu Olimpiada content for Russia. Otherwise, check out these important facts you probably never knew about edu.olimpiada.ru

Visit edu.olimpiada.ru

Key Findings

We analyzed Edu.olimpiada.ru page load time and found that the first response time was 489 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

edu.olimpiada.ru performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value12.6 s

3/100

10%

TBT (Total Blocking Time)

Value1,570 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.825

4/100

15%

TTI (Time to Interactive)

Value15.2 s

7/100

10%

Network Requests Diagram

edu.olimpiada.ru

489 ms

edu.olimpiada.ru

594 ms

6118cf673837.css

138 ms

ce366e6a2544.js

275 ms

jquery.min.js

88 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 44% of them (7 requests) were addressed to the original Edu.olimpiada.ru, 19% (3 requests) were made to Maxcdn.bootstrapcdn.com and 13% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (969 ms) belongs to the original domain Edu.olimpiada.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 161.0 kB (65%)

Content Size

248.1 kB

After Optimization

87.1 kB

In fact, the total size of Edu.olimpiada.ru main page is 248.1 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. 20% of websites need less resources to load. CSS take 156.8 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 4.8 kB

  • Original 7.6 kB
  • After minification 7.6 kB
  • After compression 2.8 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 4.8 kB or 63% of the original size.

JavaScript Optimization

-32%

Potential reduce by 27.1 kB

  • Original 83.7 kB
  • After minification 83.7 kB
  • After compression 56.6 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 27.1 kB or 32% of the original size.

CSS Optimization

-82%

Potential reduce by 129.1 kB

  • Original 156.8 kB
  • After minification 156.6 kB
  • After compression 27.7 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. Edu.olimpiada.ru needs all CSS files to be minified and compressed as it can save up to 129.1 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (64%)

Requests Now

11

After Optimization

4

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Edu Olimpiada. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

edu.olimpiada.ru accessibility score

67

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

Image elements do not have [alt] attributes

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

edu.olimpiada.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

edu.olimpiada.ru SEO score

84

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

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Edu.olimpiada.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 Edu.olimpiada.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 Edu Olimpiada. 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: