13.3 sec in total
216 ms
12.6 sec
467 ms
Visit btk.sk now to see the best up-to-date BTK content and also check out these interesting facts you probably never knew about btk.sk
Stavba, teplo a energetika pod jednou strechou. BTK sa skladá z troch divíznych zložiek, materskej spoločnosti BTK a dcérskych spoločností BTK Energia a BTK Invest. Hlavnú činnosť BTK Energia predstav...
Visit btk.skWe analyzed Btk.sk page load time and found that the first response time was 216 ms and then it took 13.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
btk.sk performance score
name
value
score
weighting
Value3.2 s
42/100
10%
Value17.6 s
0/100
25%
Value48.4 s
0/100
10%
Value390 ms
69/100
30%
Value0.002
100/100
15%
Value60.8 s
0/100
10%
216 ms
681 ms
153 ms
279 ms
319 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 94% of them (32 requests) were addressed to the original Btk.sk, 3% (1 request) were made to Fonts.googleapis.com and 3% (1 request) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (11.7 sec) belongs to the original domain Btk.sk.
Page size can be reduced by 1.5 MB (7%)
20.8 MB
19.4 MB
In fact, the total size of Btk.sk main page is 20.8 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. 15% of websites need less resources to load. Images take 20.6 MB which makes up the majority of the site volume.
Potential reduce by 59.7 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 21.4 kB, which is 31% 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 59.7 kB or 86% of the original size.
Potential reduce by 1.4 MB
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. BTK images are well optimized though.
Potential reduce by 6.2 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. This website has mostly compressed JavaScripts.
Potential reduce by 791 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. Btk.sk has all CSS files already compressed.
We found no issues to fix!
29
29
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BTK. According to our analytics all requests are already optimized.
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btk.sk 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
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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
btk.sk best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
btk.sk SEO score
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
SK
SK
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Btk.sk can be misinterpreted by Google and other search engines. Our service has detected that Slovak is used on the page, and it matches the claimed language. Our system also found out that Btk.sk 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.
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btk.sk
Open Graph data is detected on the main page of BTK. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: