Report Summary

  • 62

    Performance

    Renders faster than
    77% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

zsttk.ru

ТТК – Западная Сибирь — Оператор связи федерального уровня

Page Load Speed

45.9 sec in total

First Response

1.7 sec

Resources Loaded

43.9 sec

Page Rendered

320 ms

zsttk.ru screenshot

About Website

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

ТТК – Западная Сибирь — Оператор связи. Интернет, телефония, телевидение, полный комплекс услуг для бизнеса.

Visit zsttk.ru

Key Findings

We analyzed Zsttk.ru page load time and found that the first response time was 1.7 sec and then it took 44.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

zsttk.ru performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

13/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value6.2 s

62/100

10%

Network Requests Diagram

zsttk.ru

1662 ms

www.zsttk.ru

3309 ms

reset.css

549 ms

index2.css

20209 ms

jquery.min.js

20221 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 93% of them (37 requests) were addressed to the original Zsttk.ru, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Zsttk.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 179.9 kB (29%)

Content Size

624.2 kB

After Optimization

444.3 kB

In fact, the total size of Zsttk.ru main page is 624.2 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. 15% of websites need less resources to load. Images take 418.2 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 13.6 kB

  • Original 18.3 kB
  • After minification 17.9 kB
  • After compression 4.7 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 13.6 kB or 74% of the original size.

Image Optimization

-10%

Potential reduce by 40.3 kB

  • Original 418.2 kB
  • After minification 377.9 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. Zsttk images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 100.1 kB

  • Original 157.0 kB
  • After minification 154.4 kB
  • After compression 56.9 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 100.1 kB or 64% of the original size.

CSS Optimization

-84%

Potential reduce by 25.8 kB

  • Original 30.6 kB
  • After minification 22.0 kB
  • After compression 4.8 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. Zsttk.ru needs all CSS files to be minified and compressed as it can save up to 25.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (9%)

Requests Now

35

After Optimization

32

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zsttk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

zsttk.ru accessibility score

76

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

zsttk.ru best practices score

58

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

zsttk.ru SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zsttk.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 Zsttk.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 description is not detected on the main page of Zsttk. 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: