Tools & Wizards About Us
kurokam.ru screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

kurokam.ru

К урокам - учебники и учебные пособия для школьников

Page Load Speed

2.7 sec in total

First Response

667 ms

Resources Loaded

1.9 sec

Page Rendered

117 ms

kurokam.ru screenshot

About Website

Visit kurokam.ru now to see the best up-to-date Kurokam content for Russia and also check out these interesting facts you probably never knew about kurokam.ru

На сайте представлены учебники, пособия, тетради, дидактические материалы, справочники по всем школьным предметам, ГДЗ и решебники, методическая литература для учителей и родителей. Много дополнительн...

Visit kurokam.ru

Key Findings

We analyzed Kurokam.ru page load time and found that the first response time was 667 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

kurokam.ru performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

37/100

25%

SI (Speed Index)

Value4.5 s

73/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.6 s

70/100

10%

Network Requests Diagram

kurokam.ru

667 ms

kurokam.ru

167 ms

my.css

297 ms

adsbygoogle.js

137 ms

base.min.css

301 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 59% of them (20 requests) were addressed to the original Kurokam.ru, 18% (6 requests) were made to Counter.yadro.ru and 9% (3 requests) were made to Usocial.pro. The less responsive or slowest element that took the longest time to load (667 ms) belongs to the original domain Kurokam.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 418.1 kB (63%)

Content Size

659.0 kB

After Optimization

240.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kurokam.ru main page is 659.0 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. 25% of websites need less resources to load. CSS take 425.6 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 23.2 kB

  • Original 33.7 kB
  • After minification 32.9 kB
  • After compression 10.5 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 23.2 kB or 69% of the original size.

Image Optimization

-47%

Potential reduce by 16.7 kB

  • Original 35.3 kB
  • After minification 18.5 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, Kurokam needs image optimization as it can save up to 16.7 kB or 47% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 342 B

  • Original 164.5 kB
  • After minification 164.5 kB
  • After compression 164.2 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

-89%

Potential reduce by 377.8 kB

  • Original 425.6 kB
  • After minification 425.6 kB
  • After compression 47.8 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. Kurokam.ru needs all CSS files to be minified and compressed as it can save up to 377.8 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (70%)

Requests Now

27

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kurokam. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kurokam.ru

kurokam.ru

667 ms

kurokam.ru

kurokam.ru

167 ms

my.css

my.css

297 ms

adsbygoogle.js

adsbygoogle.js

137 ms

base.min.css

base.min.css

301 ms

layer1.min.css

layer1.min.css

304 ms

jquery-1.12.4.min.js

jquery-1.12.4.min.js

457 ms

uwnd.min.js

uwnd.min.js

612 ms

ulightbox.min.css

ulightbox.min.css

315 ms

social.css

social.css

444 ms

ulightbox.min.js

ulightbox.min.js

450 ms

scriptm.js

scriptm.js

450 ms

ssilka.js

ssilka.js

467 ms

usocial.js

usocial.js

439 ms

hit;ucoznet

hit;ucoznet

264 ms

hit;ucoz_desktop_ad

hit;ucoz_desktop_ad

262 ms

hit;ucoz_desktop_ad

hit;ucoz_desktop_ad

533 ms

hit;ucoznet

hit;ucoznet

533 ms

3_0_FFFFFFFF_EFEFEFFF_0_pageviews

3_0_FFFFFFFF_EFEFEFFF_0_pageviews

652 ms

Shapka3.png

Shapka3.png

152 ms

zagolovok1.png

zagolovok1.png

296 ms

3.gif

3.gif

150 ms

4.gif

4.gif

150 ms

vkontakteu.png

vkontakteu.png

151 ms

Arrow-Up.jpg

Arrow-Up.jpg

162 ms

49.gif

49.gif

299 ms

watch.js

watch.js

0 ms

watch.js

watch.js

0 ms

z0.trusthalloween.com

z0.trusthalloween.com

234 ms

downArrow.png

downArrow.png

274 ms

hit;clickgate08

hit;clickgate08

136 ms

usocial.share.js

usocial.share.js

40 ms

uscl.css

uscl.css

207 ms

hit;clickgate08

hit;clickgate08

303 ms

Accessibility Review

kurokam.ru accessibility score

56

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.

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

kurokam.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

kurokam.ru SEO score

81

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 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 Kurokam.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 Kurokam.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

kurokam.ru

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