Report Summary

  • 64

    Performance

    Renders faster than
    77% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

vse-kursy.com

Все Курсы Онлайн - каталог всех онлайн-курсов, вебинаров и видео-уроков на русском языке

Page Load Speed

3.3 sec in total

First Response

376 ms

Resources Loaded

2.4 sec

Page Rendered

567 ms

vse-kursy.com screenshot

About Website

Visit vse-kursy.com now to see the best up-to-date Vse Kursy content for Russia and also check out these interesting facts you probably never knew about vse-kursy.com

Каталог всех курсов онлайн на русском языке. Вебинары, обучающие видео-уроки, лайфхаки и полезные статьи.

Visit vse-kursy.com

Key Findings

We analyzed Vse-kursy.com page load time and found that the first response time was 376 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

vse-kursy.com performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

17/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value190 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.094

91/100

15%

TTI (Time to Interactive)

Value9.0 s

34/100

10%

Network Requests Diagram

vse-kursy.com

376 ms

vse-kursy.com

631 ms

index.php

130 ms

logocs.png

241 ms

index.php

562 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 82% of them (23 requests) were addressed to the original Vse-kursy.com, 7% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (976 ms) belongs to the original domain Vse-kursy.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.2 kB (27%)

Content Size

497.2 kB

After Optimization

363.0 kB

In fact, the total size of Vse-kursy.com main page is 497.2 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. 30% of websites need less resources to load. Images take 324.2 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 131.0 kB

  • Original 152.1 kB
  • After minification 141.4 kB
  • After compression 21.1 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 131.0 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 3.1 kB

  • Original 324.2 kB
  • After minification 321.0 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. Vse Kursy images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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.

Requests Breakdown

We found no issues to fix!

Requests Now

22

After Optimization

22

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vse Kursy. According to our analytics all requests are already optimized.

Accessibility Review

vse-kursy.com accessibility score

69

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

vse-kursy.com best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

vse-kursy.com SEO score

91

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vse-kursy.com can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Vse-kursy.com 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 data is detected on the main page of Vse Kursy. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: