Tools & Wizards About Us
selcdn.ru screenshot

Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

selcdn.ru

Облачное объектное хранилище S3 (аренда AWS-совместимого решения Cloud Storage)

Page Load Speed

15 sec in total

First Response

1.1 sec

Resources Loaded

11 sec

Page Rendered

2.9 sec

selcdn.ru screenshot

About Website

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

Надежное и масштабируемое решение с поддержкой Amazon S3-совместимого API. Аренда объектного хранилища S3 в облаке (cloud object storage) для быстрого доступа к вашим данным, соответствие 152-ФЗ.

Visit selcdn.ru

Key Findings

We analyzed Selcdn.ru page load time and found that the first response time was 1.1 sec and then it took 13.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

selcdn.ru performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value14.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.9 s

0/100

25%

SI (Speed Index)

Value16.3 s

0/100

10%

TBT (Total Blocking Time)

Value3,810 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.177

68/100

15%

TTI (Time to Interactive)

Value25.5 s

0/100

10%

Network Requests Diagram

1066 ms

gtm.js

72 ms

4cbe5f6.css

930 ms

81d896c.css

1017 ms

c886f46.css

1200 ms

Our browser made a total of 97 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Selcdn.ru, 21% (20 requests) were made to Selectel.ru and 8% (8 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (5.7 sec) relates to the external source Selectel.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 505.2 kB (12%)

Content Size

4.2 MB

After Optimization

3.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Selcdn.ru main page is 4.2 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 299.7 kB

  • Original 363.0 kB
  • After minification 357.8 kB
  • After compression 63.3 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 299.7 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 14.2 kB

  • Original 3.0 MB
  • After minification 3.0 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. Selcdn images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 7.9 kB

  • Original 566.2 kB
  • After minification 566.2 kB
  • After compression 558.3 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

-88%

Potential reduce by 183.5 kB

  • Original 208.0 kB
  • After minification 207.9 kB
  • After compression 24.5 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. Selcdn.ru needs all CSS files to be minified and compressed as it can save up to 183.5 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (57%)

Requests Now

84

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 84 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Selcdn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

1066 ms

gtm.js

gtm.js

72 ms

4cbe5f6.css

4cbe5f6.css

930 ms

81d896c.css

81d896c.css

1017 ms

c886f46.css

c886f46.css

1200 ms

ba1c8dd.css

ba1c8dd.css

1349 ms

c752d2e.css

c752d2e.css

1345 ms

state.js

state.js

1149 ms

ca36fb5.js

ca36fb5.js

1149 ms

bf0d6e5.js

bf0d6e5.js

1872 ms

e7e7154.js

e7e7154.js

3104 ms

b8cc6e5.js

b8cc6e5.js

2083 ms

963a19c.js

963a19c.js

2104 ms

e5015d2.js

e5015d2.js

2081 ms

f5fdc85.js

f5fdc85.js

2100 ms

936bd51.js

936bd51.js

3088 ms

16f58fc.js

16f58fc.js

2123 ms

analytics.js

analytics.js

131 ms

js

js

74 ms

code.js

code.js

848 ms

tag.js

tag.js

1902 ms

RjxuyfeUN1

RjxuyfeUN1

949 ms

tracker.js

tracker.js

1894 ms

js

js

53 ms

collect

collect

326 ms

collect

collect

1569 ms

collect

collect

355 ms

1logo_x5.svg

1logo_x5.svg

402 ms

grafics1.b619ce8.svg

grafics1.b619ce8.svg

1367 ms

expert-logo.494d91c.svg

expert-logo.494d91c.svg

1373 ms

acra-logo.ea7d8ac.svg

acra-logo.ea7d8ac.svg

1386 ms

selectel.1d4a236.png

selectel.1d4a236.png

1387 ms

selectel-dark.1627f8e.png

selectel-dark.1627f8e.png

3170 ms

selectel-partner.3d7b1a9.png

selectel-partner.3d7b1a9.png

3196 ms

cloud-storage-sql.67de1e9.svg

cloud-storage-sql.67de1e9.svg

3196 ms

1logo_uchiru.svg

1logo_uchiru.svg

1345 ms

igooods-2.svg

igooods-2.svg

2352 ms

1logo_vcru.svg

1logo_vcru.svg

2325 ms

1logo_netologia.svg

1logo_netologia.svg

3168 ms

success-skillbox.svg

success-skillbox.svg

3726 ms

Dodo_logo.svg

Dodo_logo.svg

3703 ms

Success_samocat.svg

Success_samocat.svg

3732 ms

PR-19331_Redis-%E2%80%94-%D0%BA%D0%BE%D0%BF%D0%B8%D1%8F.png

PR-19331_Redis-%E2%80%94-%D0%BA%D0%BE%D0%BF%D0%B8%D1%8F.png

4410 ms

personal_data_1@2x.jpg

personal_data_1@2x.jpg

4273 ms

PR-19284_NAS_min.png

PR-19284_NAS_min.png

4272 ms

PR-19110-%D0%BE%D1%82%D0%BA%D0%B0%D0%B7%D0%BE%D1%83%D1%81%D1%82%D0%BE%D0%B9%D1%87%D0%B8%D0%B2%D0%BE%D1%81%D1%82%D1%8C_1.png

PR-19110-%D0%BE%D1%82%D0%BA%D0%B0%D0%B7%D0%BE%D1%83%D1%81%D1%82%D0%BE%D0%B9%D1%87%D0%B8%D0%B2%D0%BE%D1%81%D1%82%D1%8C_1.png

3732 ms

backups_750x394.png

backups_750x394.png

5683 ms

PR-18966-%D0%9A%D0%B5%D0%B9%D1%81-%D0%93%D0%B0%D1%80%D0%B4%D0%B8%D1%83%D0%BC.png

PR-18966-%D0%9A%D0%B5%D0%B9%D1%81-%D0%93%D0%B0%D1%80%D0%B4%D0%B8%D1%83%D0%BC.png

5682 ms

dots-fork-3.svg

dots-fork-3.svg

4232 ms

planet.svg

planet.svg

4383 ms

settings.svg

settings.svg

4555 ms

artificial_intelligence-1.svg

artificial_intelligence-1.svg

4547 ms

shield.svg

shield.svg

5654 ms

collect

collect

1285 ms

counter

counter

967 ms

564099524

564099524

3012 ms

success.235106a.svg

success.235106a.svg

2365 ms

texture.91f8215.png

texture.91f8215.png

2444 ms

yes.0a4457a.svg

yes.0a4457a.svg

2431 ms

left-arrow-disabled.5a8ca42.svg

left-arrow-disabled.5a8ca42.svg

2420 ms

right-arrow-disabled.c70504c.svg

right-arrow-disabled.c70504c.svg

2441 ms

document.0e41a66.svg

document.0e41a66.svg

2418 ms

selectel-logo-half.732aa18.svg

selectel-logo-half.732aa18.svg

2441 ms

RjxuyfeUN1

RjxuyfeUN1

2329 ms

ManropeRegular.50532a2.woff

ManropeRegular.50532a2.woff

2471 ms

ManropeMedium.7391a4c.woff

ManropeMedium.7391a4c.woff

2471 ms

ManropeLight.2ecc585.woff

ManropeLight.2ecc585.woff

2469 ms

ManropeThin.9c4d8a1.woff

ManropeThin.9c4d8a1.woff

2469 ms

ManropeSemibold.81da8f1.woff

ManropeSemibold.81da8f1.woff

2469 ms

ManropeBold.666ecc4.woff

ManropeBold.666ecc4.woff

2492 ms

ga-audiences

ga-audiences

2393 ms

ga-audiences

ga-audiences

2389 ms

openapi.js

openapi.js

2993 ms

track-visit

track-visit

1949 ms

conversion_async.js

conversion_async.js

1786 ms

advert.gif

advert.gif

3345 ms

RjxuyfeUN1

RjxuyfeUN1

1412 ms

1166169187-1a7aa55959ed4d955b1e122221784cef4be0fc34fa084ce0fab752ed9ba9dbfb-d.jpg

1166169187-1a7aa55959ed4d955b1e122221784cef4be0fc34fa084ce0fab752ed9ba9dbfb-d.jpg

788 ms

player.js

player.js

875 ms

player.css

player.css

761 ms

vuid.min.js

vuid.min.js

717 ms

334 ms

1670 ms

1835 ms

1794 ms

1811 ms

rtrg

rtrg

1252 ms

1072 ms

1166169187-1a7aa55959ed4d955b1e122221784cef4be0fc34fa084ce0fab752ed9ba9dbfb-d

1166169187-1a7aa55959ed4d955b1e122221784cef4be0fc34fa084ce0fab752ed9ba9dbfb-d

640 ms

sync_cookie_image_decide

sync_cookie_image_decide

337 ms

tracker

tracker

276 ms

bundle_ru_RU.js

bundle_ru_RU.js

578 ms

collect

collect

54 ms

collect

collect

159 ms

collect

collect

96 ms

collect

collect

58 ms

collect

collect

39 ms

Accessibility Review

selcdn.ru accessibility score

45

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

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

[role]s do not have all required [aria-*] attributes

High

[aria-*] attributes do not have valid values

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

Form elements do not have associated labels

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

selcdn.ru best practices score

75

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

selcdn.ru SEO score

98

Search Engine Optimization Advices

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

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Selcdn.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 Selcdn.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

selcdn.ru

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