23.2 sec in total
7.5 sec
15.2 sec
495 ms
Welcome to he3da.cz homepage info - get ready to check HE3DA best content for Czech Republic right away, or after learning these important things about he3da.cz
HE3DA® is a nanotechnology platform that pushes the boundaries of lithium batteries a few decades forward.
Visit he3da.czWe analyzed He3da.cz page load time and found that the first response time was 7.5 sec and then it took 15.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
he3da.cz performance score
name
value
score
weighting
Value13.2 s
0/100
10%
Value20.3 s
0/100
25%
Value29.1 s
0/100
10%
Value1,480 ms
14/100
30%
Value0
100/100
15%
Value19.3 s
2/100
10%
7491 ms
294 ms
312 ms
319 ms
28 ms
Our browser made a total of 82 requests to load all elements on the main page. We found that 61% of them (50 requests) were addressed to the original He3da.cz, 29% (24 requests) were made to Fonts.gstatic.com and 5% (4 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (7.5 sec) belongs to the original domain He3da.cz.
Page size can be reduced by 269.1 kB (44%)
606.9 kB
337.8 kB
In fact, the total size of He3da.cz main page is 606.9 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. 65% of websites need less resources to load. HTML takes 302.8 kB which makes up the majority of the site volume.
Potential reduce by 257.1 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 257.1 kB or 85% of the original size.
Potential reduce by 11.9 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. HE3DA 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.
Number of requests can be reduced by 36 (64%)
56
20
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of HE3DA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
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styles.css
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he3da.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
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.
he3da.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
General
Impact
Issue
Detected JavaScript libraries
he3da.cz SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise He3da.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that He3da.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.
he3da.cz
Open Graph data is detected on the main page of HE3DA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: