33.2 sec in total
525 ms
28 sec
4.7 sec
Welcome to russ-vent.ru homepage info - get ready to check Russ Vent best content for Russia right away, or after learning these important things about russ-vent.ru
Наша компания предлагает изготовление и установку систем вентиляции и дымоудаления на выгодных условиях в Дзержинске.
Visit russ-vent.ruWe analyzed Russ-vent.ru page load time and found that the first response time was 525 ms and then it took 32.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
russ-vent.ru performance score
name
value
score
weighting
Value5.2 s
8/100
10%
Value49.2 s
0/100
25%
Value37.9 s
0/100
10%
Value2,340 ms
5/100
30%
Value0.556
13/100
15%
Value32.2 s
0/100
10%
525 ms
1631 ms
114 ms
41 ms
7044 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 74% of them (37 requests) were addressed to the original Russ-vent.ru, 8% (4 requests) were made to Google-analytics.com and 4% (2 requests) were made to Cdn.pozvonim.com. The less responsive or slowest element that took the longest time to load (19.6 sec) belongs to the original domain Russ-vent.ru.
Page size can be reduced by 761.9 kB (54%)
1.4 MB
649.0 kB
In fact, the total size of Russ-vent.ru main page is 1.4 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. 25% of websites need less resources to load. Javascripts take 665.5 kB which makes up the majority of the site volume.
Potential reduce by 28.8 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 5.9 kB, which is 16% 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 28.8 kB or 76% of the original size.
Potential reduce by 26.0 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. Russ Vent images are well optimized though.
Potential reduce by 518.5 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 518.5 kB or 78% of the original size.
Potential reduce by 188.6 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. Russ-vent.ru needs all CSS files to be minified and compressed as it can save up to 188.6 kB or 87% of the original size.
Number of requests can be reduced by 19 (42%)
45
26
The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Russ 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 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
russ-vent.ru
525 ms
www.russ-vent.ru
1631 ms
analytics.js
114 ms
collect
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kernel.css
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template_2eacf3aa68638868c06a82c2fd2fc70e_0d2254c3fc5cd2f2a124c646a7d252a7.css
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kernel.js
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template_4582f3a441bd46c8335acb300889328e_5cf052f1d5db64e8dfc49a4f457f1e9a.js
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new_slider.js
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connect
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ga.js
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russ-vent.ru accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<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
Image elements do not have [alt] attributes
Links do not have a discernible name
russ-vent.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
Issues were logged in the Issues panel in Chrome Devtools
russ-vent.ru SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
Tap targets are not sized appropriately
RU
N/A
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Russ-vent.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 Russ-vent.ru main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
russ-vent.ru
Open Graph description is not detected on the main page of Russ 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: