20.6 sec in total
2.8 sec
16.6 sec
1.2 sec
Click here to check amazing Viessmann Store content for Russia. Otherwise, check out these important facts you probably never knew about viessmannstore.ru
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Visit viessmannstore.ruWe analyzed Viessmannstore.ru page load time and found that the first response time was 2.8 sec and then it took 17.8 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
viessmannstore.ru performance score
name
value
score
weighting
Value7.8 s
0/100
10%
Value12.1 s
0/100
25%
Value13.8 s
1/100
10%
Value12,560 ms
0/100
30%
Value0.931
3/100
15%
Value24.6 s
0/100
10%
2837 ms
708 ms
797 ms
972 ms
675 ms
Our browser made a total of 79 requests to load all elements on the main page. We found that 91% of them (72 requests) were addressed to the original Viessmannstore.ru, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (7 sec) belongs to the original domain Viessmannstore.ru.
Page size can be reduced by 714.9 kB (33%)
2.2 MB
1.5 MB
In fact, the total size of Viessmannstore.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.
Potential reduce by 45.9 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 9.9 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 45.9 kB or 81% of the original size.
Potential reduce by 118.7 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. Viessmann Store images are well optimized though.
Potential reduce by 445.3 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 445.3 kB or 77% of the original size.
Potential reduce by 105.0 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. Viessmannstore.ru needs all CSS files to be minified and compressed as it can save up to 105.0 kB or 84% of the original size.
Number of requests can be reduced by 30 (41%)
74
44
The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Viessmann Store. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
viessmannstore.ru
2837 ms
css-reset.css
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fonts.css
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styles.css
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color1.css
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skin.css
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jquery.mCustomScrollbar.css
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jquery-1.8.1.min.js
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viessmannstore.ru accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
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
viessmannstore.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
Serves images with low resolution
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
viessmannstore.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
N/A
N/A
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Viessmannstore.ru can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Viessmannstore.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.
viessmannstore.ru
Open Graph description is not detected on the main page of Viessmann Store. 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: