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stzm.ru screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

stzm.ru

Основные элементы и конструкция теплого пола

Page Load Speed

2.7 sec in total

First Response

477 ms

Resources Loaded

1.7 sec

Page Rendered

503 ms

stzm.ru screenshot

About Website

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

Технологии системы теплого пола - Основные элементы, конструкция и виды полового покрытия

Visit stzm.ru

Key Findings

We analyzed Stzm.ru page load time and found that the first response time was 477 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

stzm.ru performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

8/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value750 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.048

99/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

stzm.ru

477 ms

style2.css

108 ms

adsbygoogle.js

55 ms

context.js

920 ms

layout.css

108 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 78% of them (18 requests) were addressed to the original Stzm.ru, 13% (3 requests) were made to Counter.yadro.ru and 4% (1 request) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (920 ms) relates to the external source Yandex.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 113.3 kB (9%)

Content Size

1.3 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stzm.ru main page is 1.3 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. 30% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 31.0 kB

  • Original 42.0 kB
  • After minification 40.3 kB
  • After compression 11.0 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 31.0 kB or 74% of the original size.

Image Optimization

-7%

Potential reduce by 81.9 kB

  • Original 1.1 MB
  • After minification 1.1 MB

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. Stzm images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 18 B

  • Original 65.4 kB
  • After minification 65.4 kB
  • After compression 65.4 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

-22%

Potential reduce by 328 B

  • Original 1.5 kB
  • After minification 1.4 kB
  • After compression 1.1 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. Stzm.ru needs all CSS files to be minified and compressed as it can save up to 328 B or 22% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

20

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stzm. According to our analytics all requests are already optimized.

Network Requests Diagram

stzm.ru

stzm.ru

477 ms

style2.css

style2.css

108 ms

adsbygoogle.js

adsbygoogle.js

55 ms

context.js

context.js

920 ms

layout.css

layout.css

108 ms

hit

hit

277 ms

1100.jpg

1100.jpg

651 ms

554.png

554.png

420 ms

588.png

588.png

629 ms

00-F.jpg

00-F.jpg

432 ms

logo_ariston.jpg

logo_ariston.jpg

221 ms

logo_ferroli-.jpg

logo_ferroli-.jpg

222 ms

logo_baxi.jpg

logo_baxi.jpg

443 ms

00-B.jpg

00-B.jpg

443 ms

kiturami_logo.jpg

kiturami_logo.jpg

525 ms

logo_daewoo_gasboilers.png

logo_daewoo_gasboilers.png

541 ms

logo_beretta.gif

logo_beretta.gif

554 ms

00-G.png

00-G.png

666 ms

logo_buderus.jpg

logo_buderus.jpg

630 ms

3-%D0%92%D0%B0%D0%B9%D0%BB%D0%B0%D0%BD%D1%82.jpg

3-%D0%92%D0%B0%D0%B9%D0%BB%D0%B0%D0%BD%D1%82.jpg

648 ms

logo_Navien1.jpg

logo_Navien1.jpg

664 ms

hit

hit

559 ms

hit

hit

141 ms

Accessibility Review

stzm.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

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

High

Links do not have a discernible name

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

Best Practices

stzm.ru best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

stzm.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 Stzm.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 Stzm.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

stzm.ru

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