6.5 sec in total
311 ms
5.2 sec
986 ms
Visit vaillant.rs now to see the best up-to-date Vaillant content for Serbia and also check out these interesting facts you probably never knew about vaillant.rs
Vodeći vrhunski brend održivih i odgovornih sistemskih rešenja i usluga za grejanje, hlađenje i pripremu potrošne tople vode.
Visit vaillant.rsWe analyzed Vaillant.rs page load time and found that the first response time was 311 ms and then it took 6.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
vaillant.rs performance score
name
value
score
weighting
Value3.2 s
42/100
10%
Value23.6 s
0/100
25%
Value16.7 s
0/100
10%
Value6,450 ms
0/100
30%
Value0.16
73/100
15%
Value27.6 s
0/100
10%
311 ms
763 ms
175 ms
450 ms
652 ms
Our browser made a total of 36 requests to load all elements on the main page. We found that 53% of them (19 requests) were addressed to the original Vaillant.rs, 22% (8 requests) were made to Cdn01l.vaillant-group.com and 14% (5 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Vaillant.rs.
Page size can be reduced by 61.2 kB (49%)
126.0 kB
64.8 kB
In fact, the total size of Vaillant.rs main page is 126.0 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. 45% of websites need less resources to load. HTML takes 71.1 kB which makes up the majority of the site volume.
Potential reduce by 60.0 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. 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 60.0 kB or 84% of the original size.
Potential reduce by 308 B
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 images are well optimized though.
Potential reduce by 50 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. This website has mostly compressed JavaScripts.
Potential reduce by 883 B
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. Vaillant.rs needs all CSS files to be minified and compressed as it can save up to 883 B or 69% of the original size.
Number of requests can be reduced by 3 (10%)
30
27
The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vaillant. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
vaillant.rs
311 ms
www.vaillant.rs
763 ms
175 ms
450 ms
core-1.min.css
652 ms
core.min.css
587 ms
423ee8ff-3341-4b0a-aafd-ffab7785a9e5.css
126 ms
header.min.js
499 ms
core.js
883 ms
v.gif
198 ms
gtm.js
82 ms
va.png
120 ms
wave.png
119 ms
va-sr-rs.png
180 ms
iconfont.woff
463 ms
6d6d7cf3-b082-4985-b23d-bc8c9292043a
86 ms
analytics.js
20 ms
collect
13 ms
collect
17 ms
image-584237-format-24-9@1136@desktop.jpg
366 ms
motiv1-24to9-99277-format-24-9@1136@desktop.png
2299 ms
solar10-3411-01-38602-format-24-9@1136@desktop.jpg
1694 ms
image-594126-format-16-9@1704@desktop.jpg
1612 ms
green-iq-537784-format-16-9@1704@desktop.jpg
1521 ms
people14-41982-01-45606-format-16-9@1704@desktop.jpg
1782 ms
prof11-4493-00-45433-format-16-9@1704@desktop.jpg
712 ms
still12-1209-01-45632-format-16-9@1704@desktop.jpg
972 ms
vp-23-2015-659436-format-16-9@1704@desktop.jpg
1406 ms
solar12-3225-01-38605-format-16-9@1704@desktop.jpg
1840 ms
solar14-12024-01-107684-format-16-9@1704@desktop.jpg
1788 ms
image-581726-format-16-9@1704@desktop.jpg
1789 ms
slika-1-264436-format-16-9@1704@desktop.jpg
1867 ms
hp10-3347-02-39722-format-16-9@1704@desktop.jpg
2385 ms
solar10-1330-02-109242-format-16-9@1704@desktop.jpg
1959 ms
collect
22 ms
collect
3 ms
vaillant.rs 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
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
vaillant.rs 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
General
Impact
Issue
Detected JavaScript libraries
vaillant.rs SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
SR
SR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vaillant.rs can be misinterpreted by Google and other search engines. Our service has detected that Serbian is used on the page, and it matches the claimed language. Our system also found out that Vaillant.rs 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.
vaillant.rs
Open Graph description is not detected on the main page of Vaillant. 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: