2.6 sec in total
371 ms
2.1 sec
155 ms
Welcome to kn.vutbr.cz homepage info - get ready to check Kn Vutbr best content for Czech Republic right away, or after learning these important things about kn.vutbr.cz
Visit kn.vutbr.czWe analyzed Kn.vutbr.cz page load time and found that the first response time was 371 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
kn.vutbr.cz performance score
name
value
score
weighting
Value0.8 s
100/100
10%
Value1.4 s
100/100
25%
Value1.5 s
100/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value0.8 s
100/100
10%
371 ms
1007 ms
363 ms
376 ms
492 ms
Our browser made a total of 8 requests to load all elements on the main page. We found that all of those requests were addressed to Kn.vutbr.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Kn.vutbr.cz.
Page size can be reduced by 10.4 kB (31%)
34.0 kB
23.6 kB
In fact, the total size of Kn.vutbr.cz main page is 34.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 21.6 kB which makes up the majority of the site volume.
Potential reduce by 9.8 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 5.4 kB, which is 47% 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 9.8 kB or 85% of the original size.
Potential reduce by 64 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. Kn Vutbr images are well optimized though.
Potential reduce by 569 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. Kn.vutbr.cz needs all CSS files to be minified and compressed as it can save up to 569 B or 60% of the original size.
We found no issues to fix!
6
6
The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kn Vutbr. According to our analytics all requests are already optimized.
kn.vutbr.cz
371 ms
www.kn.vutbr.cz
1007 ms
text.css
363 ms
Nop_bl.gif
376 ms
title.jpg
492 ms
Nop_tr.GIF
376 ms
us.png
377 ms
backgr.gif
363 ms
kn.vutbr.cz 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
kn.vutbr.cz 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
kn.vutbr.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Page is blocked from indexing
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
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kn.vutbr.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech 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 Kn.vutbr.cz 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.
kn.vutbr.cz
Open Graph description is not detected on the main page of Kn Vutbr. 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: