Report Summary

  • 27

    Performance

    Renders faster than
    47% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

selderey.net

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Page Load Speed

3.6 sec in total

First Response

756 ms

Resources Loaded

2.5 sec

Page Rendered

299 ms

selderey.net screenshot

About Website

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

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Key Findings

We analyzed Selderey.net page load time and found that the first response time was 756 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

selderey.net performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value580 ms

51/100

30%

CLS (Cumulative Layout Shift)

Value0.757

6/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

selderey.net

756 ms

fe0c53b4880aaffec324b8e5dc44d50d.css

356 ms

ab39435cbd00d2fed66c4aef532b4ab7.js

825 ms

jquery.min.js

34 ms

nav.js

112 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 63% of them (30 requests) were addressed to the original Selderey.net, 13% (6 requests) were made to Google.com and 8% (4 requests) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (825 ms) belongs to the original domain Selderey.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 434.7 kB (30%)

Content Size

1.4 MB

After Optimization

996.8 kB

In fact, the total size of Selderey.net main page is 1.4 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. 45% of websites need less resources to load. Images take 805.2 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 20.1 kB

  • Original 27.7 kB
  • After minification 26.8 kB
  • After compression 7.5 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 20.1 kB or 73% of the original size.

Image Optimization

-3%

Potential reduce by 27.2 kB

  • Original 805.2 kB
  • After minification 778.0 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. Selderey images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 341.5 kB

  • Original 543.8 kB
  • After minification 536.4 kB
  • After compression 202.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 341.5 kB or 63% of the original size.

CSS Optimization

-84%

Potential reduce by 45.8 kB

  • Original 54.8 kB
  • After minification 52.9 kB
  • After compression 8.9 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. Selderey.net needs all CSS files to be minified and compressed as it can save up to 45.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (21%)

Requests Now

43

After Optimization

34

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Selderey. 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 as a result speed up the page load time.

Accessibility Review

selderey.net accessibility score

49

Accessibility Issues

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

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

selderey.net best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

selderey.net SEO score

75

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    RU

  • Encoding

    UTF-8

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

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