Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

sergeylazarev.ru

Сергей Лазарев | Официальный сайт

Page Load Speed

3.4 sec in total

First Response

524 ms

Resources Loaded

2.7 sec

Page Rendered

225 ms

sergeylazarev.ru screenshot

About Website

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

Официальный сайт российского певца Сергея Лазарева

Visit sergeylazarev.ru

Key Findings

We analyzed Sergeylazarev.ru page load time and found that the first response time was 524 ms and then it took 2.9 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

sergeylazarev.ru performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value12.7 s

0/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value12,310 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.06

98/100

15%

TTI (Time to Interactive)

Value32.5 s

0/100

10%

Network Requests Diagram

sergeylazarev.ru

524 ms

style.css

130 ms

jquery-1.7.2.min.js

875 ms

jquery.easing.1.3.js

255 ms

jquery.jcarousel.min.js

390 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Sergeylazarev.ru and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Sergeylazarev.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 141.5 kB (21%)

Content Size

674.1 kB

After Optimization

532.6 kB

In fact, the total size of Sergeylazarev.ru main page is 674.1 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. Only 10% of websites need less resources to load. Images take 479.3 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 5.9 kB

  • Original 8.4 kB
  • After minification 7.8 kB
  • After compression 2.5 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 5.9 kB or 71% of the original size.

Image Optimization

-1%

Potential reduce by 6.4 kB

  • Original 479.3 kB
  • After minification 472.9 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. Sergeylazarev images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 112.1 kB

  • Original 165.2 kB
  • After minification 157.6 kB
  • After compression 53.1 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 112.1 kB or 68% of the original size.

CSS Optimization

-80%

Potential reduce by 17.0 kB

  • Original 21.1 kB
  • After minification 17.8 kB
  • After compression 4.1 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. Sergeylazarev.ru needs all CSS files to be minified and compressed as it can save up to 17.0 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (35%)

Requests Now

17

After Optimization

11

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sergeylazarev. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

sergeylazarev.ru accessibility score

95

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.

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

Links do not have a discernible name

Best Practices

sergeylazarev.ru 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

sergeylazarev.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

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sergeylazarev.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 Sergeylazarev.ru main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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