Tools & Wizards About Us
kursoteka.ru screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 74

    SEO

    Google-friendlier than
    31% of websites

kursoteka.ru

Онлайн курсы, видео уроки и интерактивные тесты | Курсотека

Page Load Speed

5.4 sec in total

First Response

502 ms

Resources Loaded

4.7 sec

Page Rendered

221 ms

kursoteka.ru screenshot

About Website

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

Проходи наши бесплатные онлайн курсы, отслеживай свои успехи, создавай свои видеоуроки и тесты, делись знаниями с другими

Visit kursoteka.ru

Key Findings

We analyzed Kursoteka.ru page load time and found that the first response time was 502 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

kursoteka.ru performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value1,080 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

kursoteka.ru

502 ms

www.kursoteka.ru

1067 ms

bootstrap.min.css

359 ms

plugins.css

606 ms

main.css

481 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 65% of them (39 requests) were addressed to the original Kursoteka.ru, 8% (5 requests) were made to Illicium.co and 7% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Kursoteka.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 147.7 kB (16%)

Content Size

944.2 kB

After Optimization

796.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kursoteka.ru main page is 944.2 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. 55% of websites need less resources to load. Javascripts take 521.5 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 41.2 kB

  • Original 49.4 kB
  • After minification 33.9 kB
  • After compression 8.2 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 15.5 kB, which is 31% 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 41.2 kB or 83% of the original size.

Image Optimization

-12%

Potential reduce by 30.3 kB

  • Original 245.2 kB
  • After minification 215.0 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. Obviously, Kursoteka needs image optimization as it can save up to 30.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 53.9 kB

  • Original 521.5 kB
  • After minification 521.5 kB
  • After compression 467.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-17%

Potential reduce by 22.3 kB

  • Original 128.1 kB
  • After minification 128.1 kB
  • After compression 105.8 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. Kursoteka.ru needs all CSS files to be minified and compressed as it can save up to 22.3 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (76%)

Requests Now

50

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kursoteka. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kursoteka.ru

kursoteka.ru

502 ms

www.kursoteka.ru

www.kursoteka.ru

1067 ms

bootstrap.min.css

bootstrap.min.css

359 ms

plugins.css

plugins.css

606 ms

main.css

main.css

481 ms

home.css

home.css

364 ms

custom.main.css

custom.main.css

365 ms

joyride-2.1.css

joyride-2.1.css

366 ms

themes.css

themes.css

479 ms

cbk.css

cbk.css

628 ms

cbk.js

cbk.js

762 ms

illicium_loginless_0_3.js

illicium_loginless_0_3.js

703 ms

modernizr-2.7.1-respond-1.4.2.min.js

modernizr-2.7.1-respond-1.4.2.min.js

363 ms

jquery.min.js

jquery.min.js

21 ms

projekktor-1.3.09.min.js

projekktor-1.3.09.min.js

496 ms

projekktor.style.css

projekktor.style.css

366 ms

audio.min.js

audio.min.js

482 ms

path.min.js

path.min.js

482 ms

bootstrap.min.js

bootstrap.min.js

483 ms

bootbox.min.js

bootbox.min.js

483 ms

jquery.cookie.js

jquery.cookie.js

644 ms

jquery.joyride-2.1.js

jquery.joyride-2.1.js

644 ms

plugins.js

plugins.js

1815 ms

customPlugins.js

customPlugins.js

644 ms

moment.min.js

moment.min.js

736 ms

app.js

app.js

643 ms

customApp.js

customApp.js

1157 ms

jquery.ui.widget.js

jquery.ui.widget.js

1285 ms

jquery.fileupload.js

jquery.fileupload.js

1096 ms

modal.inc.js

modal.inc.js

1095 ms

modal.js

modal.js

1095 ms

jquery-ui.css

jquery-ui.css

1096 ms

jquery-ui.js

jquery-ui.js

1096 ms

search.js

search.js

1096 ms

watch.js

watch.js

1 ms

css

css

34 ms

logo.png

logo.png

563 ms

task-2.png

task-2.png

597 ms

task-3.png

task-3.png

911 ms

task-1.png

task-1.png

709 ms

photo8.jpg

photo8.jpg

685 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

77 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

83 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

96 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

84 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

2558 ms

glyphicons-regular.woff

glyphicons-regular.woff

849 ms

GetScript

GetScript

165 ms

INDX%20960.html

INDX%20960.html

1146 ms

analytics.js

analytics.js

392 ms

getdata

getdata

384 ms

ui-bg_highlight-soft_100_eeeeee_1x100.png

ui-bg_highlight-soft_100_eeeeee_1x100.png

347 ms

collect

collect

16 ms

js

js

75 ms

css

css

20 ms

css

css

25 ms

indx960_hype_generated_script.js

indx960_hype_generated_script.js

123 ms

HYPE-728.thin.min.js

HYPE-728.thin.min.js

269 ms

button2.png

button2.png

119 ms

button1.png

button1.png

237 ms

Accessibility Review

kursoteka.ru accessibility score

78

Accessibility Issues

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

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

kursoteka.ru best practices score

58

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

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

kursoteka.ru SEO score

74

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

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 doesn't use 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 Kursoteka.ru 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 Kursoteka.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

kursoteka.ru

Open Graph data is detected on the main page of Kursoteka. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: