Tools & Wizards About Us
rd6.deti-spb.ru screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

rd6.deti-spb.ru

Репетиторы по математике онлайн — рейтинг обучения в Сравни ру

Page Load Speed

6.9 sec in total

First Response

91 ms

Resources Loaded

3.8 sec

Page Rendered

3 sec

rd6.deti-spb.ru screenshot

About Website

Welcome to rd6.deti-spb.ru homepage info - get ready to check Rd 6 Deti Spb best content for Russia right away, or after learning these important things about rd6.deti-spb.ru

Лучшие репетиторы по математике — рейтинг обучения в Сравни: выбирайте лучших преподавателей 2025 года в каталоге! Список онлайн репетиторов по математике - 33 предложения в вашем городе.

Visit rd6.deti-spb.ru

Key Findings

We analyzed Rd6.deti-spb.ru page load time and found that the first response time was 91 ms and then it took 6.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

rd6.deti-spb.ru performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value16.6 s

0/100

25%

SI (Speed Index)

Value7.7 s

25/100

10%

TBT (Total Blocking Time)

Value6,420 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value22.0 s

1/100

10%

Network Requests Diagram

rd6.deti-spb.ru

91 ms

1474 ms

polyfills-5cd94c89d3acac5f.js

703 ms

webpack-b8c2266739bae311.js

721 ms

framework-79bce4a3a540b080.js

738 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Rd6.deti-spb.ru, 52% (46 requests) were made to S91588.cdn.ngenix.net and 46% (41 requests) were made to Sravni.ru. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Sravni.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (52%)

Content Size

2.2 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Rd6.deti-spb.ru main page is 2.2 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. 40% of websites need less resources to load. HTML takes 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 1.0 MB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 208.9 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 1.0 MB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 494 B

  • Original 199.6 kB
  • After minification 199.1 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. Rd 6 Deti Spb images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 83.1 kB

  • Original 711.4 kB
  • After minification 711.4 kB
  • After compression 628.3 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 83.1 kB or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (48%)

Requests Now

73

After Optimization

38

  • Images
  • JavaScript

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rd 6 Deti Spb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

rd6.deti-spb.ru

rd6.deti-spb.ru

91 ms

1474 ms

polyfills-5cd94c89d3acac5f.js

polyfills-5cd94c89d3acac5f.js

703 ms

webpack-b8c2266739bae311.js

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721 ms

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738 ms

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742 ms

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1404 ms

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1457 ms

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1484 ms

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1513 ms

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main.js

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Accessibility Review

rd6.deti-spb.ru accessibility score

81

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

Image elements do not have [alt] attributes

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

rd6.deti-spb.ru best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

rd6.deti-spb.ru SEO score

85

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 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 Rd6.deti-spb.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 Rd6.deti-spb.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

rd6.deti-spb.ru

Open Graph description is not detected on the main page of Rd 6 Deti Spb. 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: