Tools & Wizards About Us
sigma-vent.ru screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    49% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

sigma-vent.ru

Сигма-Вент в Москве. Противопожарные клапаны , вентиляторы дымоудаления , общеобменное вентиляционное оборудование.

Page Load Speed

5.2 sec in total

First Response

457 ms

Resources Loaded

4.3 sec

Page Rendered

450 ms

sigma-vent.ru screenshot

About Website

Visit sigma-vent.ru now to see the best up-to-date Sigma Vent content for Russia and also check out these interesting facts you probably never knew about sigma-vent.ru

Компания Сигма-Вент в Москве. Производство воздушных клапанов, огнезадерживающих (противопожарных) клапанов. Вентиляционные и дымовые клапаны (дымоудаления).

Visit sigma-vent.ru

Key Findings

We analyzed Sigma-vent.ru page load time and found that the first response time was 457 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

sigma-vent.ru performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value1,110 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0.086

93/100

15%

TTI (Time to Interactive)

Value9.4 s

31/100

10%

Network Requests Diagram

sigma-vent.ru

457 ms

sigma-vent.ru

790 ms

core.css

232 ms

bootstrap.css

462 ms

font-awesome.css

346 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 89% of them (57 requests) were addressed to the original Sigma-vent.ru, 3% (2 requests) were made to Bitrix.info and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Sigma-vent.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 444.1 kB (21%)

Content Size

2.1 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sigma-vent.ru main page is 2.1 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. 55% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 84.4 kB

  • Original 102.9 kB
  • After minification 84.6 kB
  • After compression 18.5 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. This page needs HTML code to be minified as it can gain 18.3 kB, which is 18% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 84.4 kB or 82% of the original size.

Image Optimization

-8%

Potential reduce by 116.4 kB

  • Original 1.5 MB
  • After minification 1.3 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. Sigma Vent images are well optimized though.

JavaScript Optimization

-48%

Potential reduce by 223.9 kB

  • Original 463.9 kB
  • After minification 463.9 kB
  • After compression 240.0 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 223.9 kB or 48% of the original size.

CSS Optimization

-24%

Potential reduce by 19.5 kB

  • Original 80.9 kB
  • After minification 80.9 kB
  • After compression 61.4 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. Sigma-vent.ru needs all CSS files to be minified and compressed as it can save up to 19.5 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (68%)

Requests Now

62

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sigma Vent. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sigma-vent.ru

sigma-vent.ru

457 ms

sigma-vent.ru

sigma-vent.ru

790 ms

core.css

core.css

232 ms

bootstrap.css

bootstrap.css

462 ms

font-awesome.css

font-awesome.css

346 ms

css

css

57 ms

video-js.css

video-js.css

453 ms

style.css

style.css

347 ms

style.css

style.css

342 ms

style.css

style.css

348 ms

style.css

style.css

447 ms

grid_lib.min.css

grid_lib.min.css

458 ms

main_style.css

main_style.css

458 ms

header.css

header.css

472 ms

content.css

content.css

556 ms

footer.css

footer.css

559 ms

jquery.formstyler.css

jquery.formstyler.css

563 ms

media.css

media.css

565 ms

flexslider.css

flexslider.css

557 ms

style.css

style.css

566 ms

style.css

style.css

650 ms

style.css

style.css

652 ms

style.css

style.css

661 ms

style.css

style.css

660 ms

style.css

style.css

661 ms

colors.css

colors.css

668 ms

style.css

style.css

758 ms

styles.css

styles.css

758 ms

core.js

core.js

1197 ms

core_fx.js

core_fx.js

766 ms

jquery.min.js

jquery.min.js

43 ms

fileman_player.js

fileman_player.js

765 ms

video.js

video.js

1123 ms

jquery.formstyler.js

jquery.formstyler.js

865 ms

jquery.cookie.js

jquery.cookie.js

865 ms

js.js

js.js

870 ms

jquery.flexslider.min.js

jquery.flexslider.min.js

871 ms

script.js

script.js

973 ms

script.js

script.js

974 ms

script.js

script.js

888 ms

script.js

script.js

771 ms

script.js

script.js

761 ms

ba.js

ba.js

317 ms

analytics.js

analytics.js

137 ms

logo.png

logo.png

134 ms

telegram32.png

telegram32.png

129 ms

whatsapp32.png

whatsapp32.png

240 ms

banner-s-kartoy.jpg

banner-s-kartoy.jpg

664 ms

banner-antivandalnaya-zashchita3.jpg

banner-antivandalnaya-zashchita3.jpg

757 ms

nestandartnoe-oborudovanie2.jpg

nestandartnoe-oborudovanie2.jpg

1019 ms

protivopozharnaya-ventilyatsiya-_2_.jpg

protivopozharnaya-ventilyatsiya-_2_.jpg

225 ms

obshcheobmennaya-vent..jpg

obshcheobmennaya-vent..jpg

225 ms

ventilyatory-dymoudaleniya.jpg

ventilyatory-dymoudaleniya.jpg

593 ms

obshcheobmennaya_vent..jpg

obshcheobmennaya_vent..jpg

591 ms

skidka2.png

skidka2.png

593 ms

select.png

select.png

570 ms

logo_dark.png

logo_dark.png

570 ms

mobile-menu.png

mobile-menu.png

509 ms

rightblock_inactive.png

rightblock_inactive.png

510 ms

collect

collect

35 ms

main_icon.png

main_icon.png

445 ms

tag.js

tag.js

840 ms

ajax_counter.php

ajax_counter.php

593 ms

bx_stat

bx_stat

194 ms

Accessibility Review

sigma-vent.ru accessibility score

79

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

sigma-vent.ru best practices score

67

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

High

Missing source maps for large first-party JavaScript

SEO Factors

sigma-vent.ru SEO score

75

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

High

Page is blocked from indexing

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 Sigma-vent.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 Sigma-vent.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

sigma-vent.ru

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