Tools & Wizards About Us
sigma-vent.ru screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

sigma-vent.ru

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

Page Load Speed

3.2 sec in total

First Response

869 ms

Resources Loaded

2.2 sec

Page Rendered

197 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 869 ms and then it took 2.3 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

sigma-vent.ru performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.1 s

1/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value820 ms

35/100

30%

CLS (Cumulative Layout Shift)

Value0.293

41/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

sigma-vent.ru

869 ms

bootstrap.css

95 ms

font-awesome.css

68 ms

css

50 ms

ui.design-tokens.css

65 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 88% of them (59 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 (869 ms) belongs to the original domain Sigma-vent.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 285.0 kB (13%)

Content Size

2.2 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sigma-vent.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. 45% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 71.6 kB

  • Original 86.6 kB
  • After minification 69.1 kB
  • After compression 15.0 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. This page needs HTML code to be minified as it can gain 17.5 kB, which is 20% 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 71.6 kB or 83% of the original size.

Image Optimization

-5%

Potential reduce by 75.2 kB

  • Original 1.4 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

-18%

Potential reduce by 117.6 kB

  • Original 647.0 kB
  • After minification 647.0 kB
  • After compression 529.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 117.6 kB or 18% of the original size.

CSS Optimization

-24%

Potential reduce by 20.6 kB

  • Original 85.4 kB
  • After minification 85.4 kB
  • After compression 64.8 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. Sigma-vent.ru needs all CSS files to be minified and compressed as it can save up to 20.6 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (69%)

Requests Now

65

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 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 22 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sigma-vent.ru

sigma-vent.ru

869 ms

bootstrap.css

bootstrap.css

95 ms

font-awesome.css

font-awesome.css

68 ms

css

css

50 ms

ui.design-tokens.css

ui.design-tokens.css

65 ms

video-js.css

video-js.css

138 ms

style.css

style.css

66 ms

style.css

style.css

93 ms

style.css

style.css

107 ms

style.css

style.css

106 ms

grid_lib.min.css

grid_lib.min.css

122 ms

main_style.css

main_style.css

121 ms

header.css

header.css

126 ms

content.css

content.css

124 ms

footer.css

footer.css

149 ms

jquery.formstyler.css

jquery.formstyler.css

152 ms

media.css

media.css

154 ms

flexslider.css

flexslider.css

157 ms

style.css

style.css

180 ms

style.css

style.css

206 ms

style.css

style.css

213 ms

style.css

style.css

182 ms

style.css

style.css

180 ms

colors.css

colors.css

187 ms

style.css

style.css

210 ms

styles.css

styles.css

211 ms

core.js

core.js

293 ms

protobuf.js

protobuf.js

272 ms

model.js

model.js

236 ms

rest.client.js

rest.client.js

237 ms

pull.client.js

pull.client.js

250 ms

core_fx.js

core_fx.js

239 ms

jquery.min.js

jquery.min.js

28 ms

fileman_player.js

fileman_player.js

265 ms

video.js

video.js

375 ms

jquery.formstyler.js

jquery.formstyler.js

271 ms

jquery.cookie.js

jquery.cookie.js

280 ms

js.js

js.js

316 ms

jquery.flexslider.min.js

jquery.flexslider.min.js

260 ms

script.js

script.js

258 ms

script.js

script.js

258 ms

script.js

script.js

223 ms

script.js

script.js

228 ms

script.js

script.js

228 ms

ba.js

ba.js

232 ms

analytics.js

analytics.js

27 ms

logo.png

logo.png

45 ms

telegram32.png

telegram32.png

46 ms

whatsapp32.png

whatsapp32.png

46 ms

banner-s-kartoy.jpg

banner-s-kartoy.jpg

230 ms

banner-antivandalnaya-zashchita3.jpg

banner-antivandalnaya-zashchita3.jpg

228 ms

nestandartnoe-oborudovanie2.jpg

nestandartnoe-oborudovanie2.jpg

228 ms

protivopozharnaya-ventilyatsiya-_2_.jpg

protivopozharnaya-ventilyatsiya-_2_.jpg

79 ms

obshcheobmennaya-vent..jpg

obshcheobmennaya-vent..jpg

80 ms

zagolovok-razdela.jpg

zagolovok-razdela.jpg

80 ms

1.gif

1.gif

102 ms

vivakom.svg

vivakom.svg

103 ms

skidka2.png

skidka2.png

228 ms

mail_ic.svg

mail_ic.svg

223 ms

search.svg

search.svg

207 ms

arrow_dwn.svg

arrow_dwn.svg

205 ms

collect

collect

19 ms

main_icon.png

main_icon.png

175 ms

js

js

64 ms

circl.png

circl.png

164 ms

tag.js

tag.js

869 ms

bx_stat

bx_stat

70 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

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

sigma-vent.ru SEO score

83

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 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: