3.2 sec in total
522 ms
2.3 sec
446 ms
Welcome to vaillantserwis.com.pl homepage info - get ready to check Vaillant Serwis Com best content right away, or after learning these important things about vaillantserwis.com.pl
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Visit vaillantserwis.com.plWe analyzed Vaillantserwis.com.pl page load time and found that the first response time was 522 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
vaillantserwis.com.pl performance score
name
value
score
weighting
Value2.2 s
79/100
10%
Value4.2 s
45/100
25%
Value2.8 s
96/100
10%
Value60 ms
100/100
30%
Value0.002
100/100
15%
Value3.0 s
96/100
10%
522 ms
272 ms
357 ms
591 ms
273 ms
Our browser made a total of 58 requests to load all elements on the main page. We found that 74% of them (43 requests) were addressed to the original Vaillantserwis.com.pl, 7% (4 requests) were made to Go.pl.bbelements.com and 7% (4 requests) were made to Gapl.hit.gemius.pl. The less responsive or slowest element that took the longest time to load (955 ms) belongs to the original domain Vaillantserwis.com.pl.
Page size can be reduced by 275.3 kB (52%)
525.9 kB
250.7 kB
In fact, the total size of Vaillantserwis.com.pl main page is 525.9 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. 30% of websites need less resources to load. HTML takes 257.0 kB which makes up the majority of the site volume.
Potential reduce by 221.5 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. 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 221.5 kB or 86% of the original size.
Potential reduce by 14.8 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. Vaillant Serwis Com images are well optimized though.
Potential reduce by 38.9 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 38.9 kB or 68% of the original size.
Number of requests can be reduced by 22 (39%)
57
35
The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vaillant Serwis Com. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.
vaillantserwis.com.pl
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vaillantserwis.com.pl accessibility score
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
vaillantserwis.com.pl 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
Page has valid source maps
vaillantserwis.com.pl 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
PL
PL
WINDOWS-1250
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vaillantserwis.com.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Vaillantserwis.com.pl main page’s claimed encoding is windows-1250. 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.
vaillantserwis.com.pl
Open Graph description is not detected on the main page of Vaillant Serwis Com. 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: