Tools & Wizards About Us
sdo.sfu-kras.ru screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

sdo.sfu-kras.ru

Дистанционное образование и тестирование для школьников

Page Load Speed

30.8 sec in total

First Response

698 ms

Resources Loaded

11.9 sec

Page Rendered

18.2 sec

sdo.sfu-kras.ru screenshot

About Website

Click here to check amazing Sdo Sfu Kras content for Russia. Otherwise, check out these important facts you probably never knew about sdo.sfu-kras.ru

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Visit sdo.sfu-kras.ru

Key Findings

We analyzed Sdo.sfu-kras.ru page load time and found that the first response time was 698 ms and then it took 30.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

sdo.sfu-kras.ru performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value47.4 s

0/100

25%

SI (Speed Index)

Value16.4 s

0/100

10%

TBT (Total Blocking Time)

Value12,760 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value49.9 s

0/100

10%

Network Requests Diagram

sdo.sfu-kras.ru

698 ms

sdo.sfu-kras.ru

1310 ms

yui_combo.php

185 ms

all

761 ms

css

34 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 77% of them (50 requests) were addressed to the original Sdo.sfu-kras.ru, 6% (4 requests) were made to Crm.dovuz.sfu-kras.ru and 5% (3 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (8.1 sec) belongs to the original domain Sdo.sfu-kras.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (15%)

Content Size

9.5 MB

After Optimization

8.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sdo.sfu-kras.ru main page is 9.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 8.1 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 232.9 kB

  • Original 296.4 kB
  • After minification 289.8 kB
  • After compression 63.4 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 232.9 kB or 79% of the original size.

Image Optimization

-11%

Potential reduce by 909.0 kB

  • Original 8.1 MB
  • After minification 7.2 MB

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, Sdo Sfu Kras needs image optimization as it can save up to 909.0 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-30%

Potential reduce by 284.0 kB

  • Original 931.5 kB
  • After minification 931.2 kB
  • After compression 647.5 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 284.0 kB or 30% of the original size.

CSS Optimization

-18%

Potential reduce by 38.3 kB

  • Original 214.6 kB
  • After minification 214.6 kB
  • After compression 176.3 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. Sdo.sfu-kras.ru needs all CSS files to be minified and compressed as it can save up to 38.3 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (51%)

Requests Now

59

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sdo Sfu Kras. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sdo.sfu-kras.ru

sdo.sfu-kras.ru

698 ms

sdo.sfu-kras.ru

sdo.sfu-kras.ru

1310 ms

yui_combo.php

yui_combo.php

185 ms

all

all

761 ms

css

css

34 ms

all.css

all.css

32 ms

polyfill.min.js

polyfill.min.js

742 ms

polyfill.js

polyfill.js

546 ms

yui_combo.php

yui_combo.php

1701 ms

jquery-3.4.1.js

jquery-3.4.1.js

939 ms

jquery.easing.min.1.4.js

jquery.easing.min.1.4.js

601 ms

slideshow.js

slideshow.js

858 ms

carousel.js

carousel.js

859 ms

javascript-static.js

javascript-static.js

926 ms

supervisor.js

supervisor.js

1327 ms

require.min.js

require.min.js

941 ms

footer

footer

942 ms

tag.js

tag.js

970 ms

sfu-back-1000.png

sfu-back-1000.png

836 ms

icon

icon

291 ms

loading

loading

303 ms

logo_sfu.png

logo_sfu.png

5308 ms

search

search

309 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

16 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

20 ms

block-divider

block-divider

201 ms

collapsed

collapsed

201 ms

icon-search

icon-search

202 ms

tarn-nguyen-RjXOvhpmb20-unsplash.jpg

tarn-nguyen-RjXOvhpmb20-unsplash.jpg

3391 ms

%D0%BB%D0%BE%D0%B3%D0%BE.jpg

%D0%BB%D0%BE%D0%B3%D0%BE.jpg

464 ms

%D0%97%D0%B0%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B0_1.jpg

%D0%97%D0%B0%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B0_1.jpg

1189 ms

iiUtrKpUG6A.jpg

iiUtrKpUG6A.jpg

1182 ms

english.jpg

english.jpg

1035 ms

%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%202023-03-14%20091952.png

%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%202023-03-14%20091952.png

5207 ms

%D0%9B%D0%BE%D0%B3%D0%BE%D1%82%D0%B8%D0%BF%20%D0%9E%D0%BB%D0%B8%D0%BC%D0%BF%D0%B8%D0%B0%D0%B4%D1%8B.jpg

%D0%9B%D0%BE%D0%B3%D0%BE%D1%82%D0%B8%D0%BF%20%D0%9E%D0%BB%D0%B8%D0%BC%D0%BF%D0%B8%D0%B0%D0%B4%D1%8B.jpg

1318 ms

%D0%9B%D0%BE%D0%B3%D0%BE%20%D0%BA%D1%80%D1%83%D0%B3%20400.png

%D0%9B%D0%BE%D0%B3%D0%BE%20%D0%BA%D1%80%D1%83%D0%B3%20400.png

1411 ms

35.jpg

35.jpg

1462 ms

%D0%BA%D0%B0%D1%80%D1%82%D0%B8%D1%82%D0%BD%D0%BA%D0%B0.png

%D0%BA%D0%B0%D1%80%D1%82%D0%B8%D1%82%D0%BD%D0%BA%D0%B0.png

1570 ms

3.jpg

3.jpg

1640 ms

Olimpiada-po-psihologii.jpg

Olimpiada-po-psihologii.jpg

1696 ms

%D0%98%D0%93%20%28%D0%A0%D0%B5%D1%81%D1%82%D0%BE%D0%94%D0%B6%D1%83%D0%BD%D0%B8%D0%BE%D1%80%202023%29%20%D0%9F%D0%BE%D1%81%D1%82%202%20%281%29.jpg

%D0%98%D0%93%20%28%D0%A0%D0%B5%D1%81%D1%82%D0%BE%D0%94%D0%B6%D1%83%D0%BD%D0%B8%D0%BE%D1%80%202023%29%20%D0%9F%D0%BE%D1%81%D1%82%202%20%281%29.jpg

8140 ms

49592f2764b95d0b0ced52c12023a8ef_XL.jpg

49592f2764b95d0b0ced52c12023a8ef_XL.jpg

1898 ms

%D0%9B%D0%BE%D0%B3%D0%BE%D1%82%D0%B8%D0%BF2.jpg

%D0%9B%D0%BE%D0%B3%D0%BE%D1%82%D0%B8%D0%BF2.jpg

1941 ms

terry-vlisidis-RflgrtzU3Cw-unsplash.jpg

terry-vlisidis-RflgrtzU3Cw-unsplash.jpg

5224 ms

%D0%AD%D0%BA%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F_%D0%A1%D1%82%D1%80%D0%B0%D0%BD%D0%B8%D1%86%D0%B0_08.jpg

%D0%AD%D0%BA%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F_%D0%A1%D1%82%D1%80%D0%B0%D0%BD%D0%B8%D1%86%D0%B0_08.jpg

2206 ms

%D0%B0%D0%BD%D0%B3%D0%BB.jpg

%D0%B0%D0%BD%D0%B3%D0%BB.jpg

3879 ms

loader_1_seelti.js

loader_1_seelti.js

1421 ms

yui_combo.php

yui_combo.php

3543 ms

fa-solid-900.woff

fa-solid-900.woff

14 ms

fa-regular-400.woff

fa-regular-400.woff

44 ms

first.js

first.js

3873 ms

advert.gif

advert.gif

643 ms

sync_cookie_image_decide

sync_cookie_image_decide

133 ms

1

1

138 ms

call.tracker.js

call.tracker.js

194 ms

styles.min.css

styles.min.css

728 ms

script.min.js

script.min.js

1634 ms

yui_combo.php

yui_combo.php

488 ms

jquery-3.4.1.min.js

jquery-3.4.1.min.js

189 ms

yui_combo.php

yui_combo.php

197 ms

yui_combo.php

yui_combo.php

379 ms

service.php

service.php

473 ms

yui_combo.php

yui_combo.php

365 ms

service-nologin.php

service-nologin.php

434 ms

service-nologin.php

service-nologin.php

228 ms

Accessibility Review

sdo.sfu-kras.ru accessibility score

82

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

sdo.sfu-kras.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

sdo.sfu-kras.ru 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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sdo.sfu-kras.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it does not match the claimed English language. Our system also found out that Sdo.sfu-kras.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

sdo.sfu-kras.ru

Open Graph description is not detected on the main page of Sdo Sfu Kras. 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: