Tools & Wizards About Us
kbr.smartlearn.ru screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

kbr.smartlearn.ru

Доменное имя smartlearn.ru в магазине доменов RU-CENTER

Page Load Speed

6.4 sec in total

First Response

419 ms

Resources Loaded

5.9 sec

Page Rendered

153 ms

kbr.smartlearn.ru screenshot

About Website

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

Узнать стоимость домена smartlearn.ru, возраст, историю сайтов на домене smartlearn.ru. Купить домен smartlearn.ru в магазине доменных имен RU-CENTER.

Visit kbr.smartlearn.ru

Key Findings

We analyzed Kbr.smartlearn.ru page load time and found that the first response time was 419 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

kbr.smartlearn.ru performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value15.5 s

0/100

10%

TBT (Total Blocking Time)

Value6,460 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value26.3 s

0/100

10%

Network Requests Diagram

kbr.smartlearn.ru

419 ms

smartlearn.ru

2132 ms

1058 ms

rcweb-styles-f49bda1e0534c1cefcca.css

483 ms

om-styles.css

606 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Kbr.smartlearn.ru, 48% (13 requests) were made to Nic.ru and 33% (9 requests) were made to Storage.nic.ru. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Nic.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 398.5 kB (68%)

Content Size

585.2 kB

After Optimization

186.7 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Kbr.smartlearn.ru main page is 585.2 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. 40% of websites need less resources to load. HTML takes 457.5 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 369.1 kB

  • Original 457.5 kB
  • After minification 457.5 kB
  • After compression 88.5 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 369.1 kB or 81% of the original size.

JavaScript Optimization

-13%

Potential reduce by 4.2 kB

  • Original 31.6 kB
  • After minification 31.6 kB
  • After compression 27.4 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 4.2 kB or 13% of the original size.

CSS Optimization

-26%

Potential reduce by 25.3 kB

  • Original 96.1 kB
  • After minification 96.1 kB
  • After compression 70.8 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. Kbr.smartlearn.ru needs all CSS files to be minified and compressed as it can save up to 25.3 kB or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (54%)

Requests Now

24

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kbr Smartlearn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kbr.smartlearn.ru

kbr.smartlearn.ru

419 ms

smartlearn.ru

smartlearn.ru

2132 ms

1058 ms

rcweb-styles-f49bda1e0534c1cefcca.css

rcweb-styles-f49bda1e0534c1cefcca.css

483 ms

om-styles.css

om-styles.css

606 ms

main.css

main.css

501 ms

external.bundle.js

external.bundle.js

575 ms

internal.bundle.js

internal.bundle.js

578 ms

inform-notifications.bundle.js

inform-notifications.bundle.js

706 ms

rcweb-bundle-f49bda1e0534c1cefcca.js

rcweb-bundle-f49bda1e0534c1cefcca.js

618 ms

bundle.js

bundle.js

788 ms

main.js

main.js

839 ms

tag.js

tag.js

934 ms

rec_bloc_icon_6.svg

rec_bloc_icon_6.svg

929 ms

rec_bloc_icon_1.svg

rec_bloc_icon_1.svg

918 ms

rec_bloc_icon_5.svg

rec_bloc_icon_5.svg

916 ms

rec_bloc_icon_7.svg

rec_bloc_icon_7.svg

915 ms

rec_bloc_icon_8.svg

rec_bloc_icon_8.svg

916 ms

rec_bloc_icon_10.svg

rec_bloc_icon_10.svg

917 ms

rec_bloc_icon_9.svg

rec_bloc_icon_9.svg

1045 ms

rec_bloc_icon_4.svg

rec_bloc_icon_4.svg

1042 ms

rec_bloc_icon_2.svg

rec_bloc_icon_2.svg

1043 ms

code.gbzu92.ru

code.gbzu92.ru

961 ms

tracking.js

tracking.js

962 ms

context.js

context.js

1168 ms

1.css

1.css

122 ms

widget.js

widget.js

393 ms

Accessibility Review

kbr.smartlearn.ru accessibility score

81

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

kbr.smartlearn.ru best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

kbr.smartlearn.ru SEO score

84

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 doesn't use 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 Kbr.smartlearn.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 Kbr.smartlearn.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

kbr.smartlearn.ru

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