3.3 sec in total
682 ms
2 sec
625 ms
Welcome to ventilation.ru homepage info - get ready to check Ventilation best content right away, or after learning these important things about ventilation.ru
Вентиляция, системы вентиляции, проектирование и монтаж вентиляции Systemair, Ostberg, кондиционирование
Visit ventilation.ruWe analyzed Ventilation.ru page load time and found that the first response time was 682 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
ventilation.ru performance score
name
value
score
weighting
Value1.6 s
94/100
10%
Value1.6 s
99/100
25%
Value3.0 s
94/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value1.6 s
100/100
10%
682 ms
270 ms
277 ms
539 ms
552 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that 42% of them (11 requests) were addressed to the original Ventilation.ru, 54% (14 requests) were made to Centershop.ru and 4% (1 request) were made to 7lepestok.ru. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source 7lepestok.ru.
Page size can be reduced by 46.7 kB (23%)
205.8 kB
159.2 kB
In fact, the total size of Ventilation.ru main page is 205.8 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 159.4 kB which makes up the majority of the site volume.
Potential reduce by 32.8 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. 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 32.8 kB or 78% of the original size.
Potential reduce by 10.5 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. Ventilation images are well optimized though.
Potential reduce by 184 B
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 184 B or 61% of the original size.
Potential reduce by 3.1 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. Ventilation.ru needs all CSS files to be minified and compressed as it can save up to 3.1 kB or 75% of the original size.
We found no issues to fix!
24
24
The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ventilation. According to our analytics all requests are already optimized.
ventilation.ru
682 ms
style.css
270 ms
clean_form.js
277 ms
9134.jpg
539 ms
vent111222.jpg
552 ms
100banner-action.gif
1131 ms
ven222111.jpg
678 ms
ven333111.jpg
838 ms
14338.jpg
666 ms
14339.jpg
807 ms
18262.jpg
816 ms
18266.jpg
818 ms
907.jpg
819 ms
b9d65e9dae0225bad4c8bd7e9f1557d5.jpg
966 ms
976df8aa01ef6ab530e80b3a63804f3e.jpg
830 ms
a2e1a40ca79c5756b60b4432a581e4fe.jpg
945 ms
ba9238252c9ebd4bd89d5b1466f4ba1d.jpg
1082 ms
a5a3e5baa6d185fdd8ba4282cad355b3.jpg
960 ms
top_bg.jpg
150 ms
top_left.jpg
291 ms
top_right.jpg
292 ms
top_menu_bg.jpg
285 ms
search_bg.jpg
291 ms
top_brad_bg.jpg
297 ms
marker02.gif
330 ms
blank.gif
425 ms
ventilation.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
Form elements do not have associated labels
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
ventilation.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Browser errors were logged to the console
ventilation.ru SEO score
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
RU
N/A
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ventilation.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 Ventilation.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.
ventilation.ru
Open Graph description is not detected on the main page of Ventilation. 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: