Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

tennis-slice.ru

Поиграть в большой теннис в Санкт-Петербурге, школа тенниса СПб

Page Load Speed

5.6 sec in total

First Response

1 sec

Resources Loaded

4.1 sec

Page Rendered

550 ms

About Website

Click here to check amazing Tennis Slice content. Otherwise, check out these important facts you probably never knew about tennis-slice.ru

В теннисном клубе Слайс вы можете поиграть в большой теннис в комфортной обстановке и за небольшую плату. Слайс клуб - первая школа тенниса в СПб.

Visit tennis-slice.ru

Key Findings

We analyzed Tennis-slice.ru page load time and found that the first response time was 1 sec and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

tennis-slice.ru performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

17/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value2,770 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value26.4 s

0/100

10%

Network Requests Diagram

tennis-slice.ru

1041 ms

wp-emoji-release.min.js

229 ms

css

19 ms

css

33 ms

css

33 ms

Our browser made a total of 132 requests to load all elements on the main page. We found that 56% of them (74 requests) were addressed to the original Tennis-slice.ru, 17% (23 requests) were made to Fonts.gstatic.com and 7% (9 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Tennis-slice.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 299.4 kB (17%)

Content Size

1.7 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tennis-slice.ru main page is 1.7 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. Only a small number of websites need less resources to load. Images take 703.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 218.6 kB

  • Original 266.8 kB
  • After minification 262.8 kB
  • After compression 48.2 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 218.6 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 21.3 kB

  • Original 703.7 kB
  • After minification 682.4 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. Tennis Slice images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 50.5 kB

  • Original 570.2 kB
  • After minification 570.0 kB
  • After compression 519.7 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

-5%

Potential reduce by 9.0 kB

  • Original 184.0 kB
  • After minification 183.5 kB
  • After compression 175.0 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. Tennis-slice.ru has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 72 (70%)

Requests Now

103

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tennis Slice. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 37 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

tennis-slice.ru accessibility score

83

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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

tennis-slice.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

Missing source maps for large first-party JavaScript

SEO Factors

tennis-slice.ru SEO score

91

Search Engine Optimization Advices

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 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 Tennis-slice.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 Tennis-slice.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

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