4.8 sec in total
540 ms
4 sec
269 ms
Welcome to helion.cz homepage info - get ready to check Helion best content right away, or after learning these important things about helion.cz
helion.cz - Specialista na alternativní zdroje energie, Fotovoltaické elektrárny, solární systémy, tepelná čerpadla, větrné elektrárny Trutnov a okolí
Visit helion.czWe analyzed Helion.cz page load time and found that the first response time was 540 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
helion.cz performance score
name
value
score
weighting
Value4.8 s
12/100
10%
Value9.3 s
1/100
25%
Value8.1 s
21/100
10%
Value250 ms
84/100
30%
Value0.048
99/100
15%
Value8.6 s
37/100
10%
540 ms
542 ms
641 ms
466 ms
213 ms
Our browser made a total of 46 requests to load all elements on the main page. We found that 67% of them (31 requests) were addressed to the original Helion.cz, 13% (6 requests) were made to Api.mapy.cz and 7% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Helion.cz.
Page size can be reduced by 1.1 MB (22%)
5.0 MB
3.9 MB
In fact, the total size of Helion.cz main page is 5.0 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. 40% of websites need less resources to load. Images take 4.2 MB which makes up the majority of the site volume.
Potential reduce by 18.1 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. This page needs HTML code to be minified as it can gain 5.0 kB, which is 21% 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 18.1 kB or 76% of the original size.
Potential reduce by 469.5 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. Obviously, Helion needs image optimization as it can save up to 469.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 521.4 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 521.4 kB or 73% of the original size.
Potential reduce by 76.6 kB
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. Helion.cz needs all CSS files to be minified and compressed as it can save up to 76.6 kB or 85% of the original size.
Number of requests can be reduced by 16 (43%)
37
21
The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Helion. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
helion.cz
540 ms
style.min.css
542 ms
DependencyHandler.axd
641 ms
loader.js
466 ms
DependencyHandler.axd
213 ms
css
29 ms
richtext.css
111 ms
fullwidth.css
113 ms
settings.css
326 ms
main.css
208 ms
jquery.mousewheel.min.js
6 ms
touchr.js
328 ms
jak.js
544 ms
smap.js
856 ms
config.js
729 ms
api.css
556 ms
card.css
560 ms
analytics.js
85 ms
iconPhone.png
113 ms
logo.png
117 ms
searchButton.png
114 ms
imageGen.ashx
1608 ms
imageGen.ashx
682 ms
imageGen.ashx
883 ms
imageGen.ashx
846 ms
imageGen.ashx
1071 ms
iconGraph.png
245 ms
iconQuestion.png
358 ms
iconChat.png
467 ms
iconNewsletter.png
585 ms
aboutBg.png
700 ms
logoOrangehouse.png
792 ms
loader.gif
816 ms
timer.png
897 ms
raleway-regular-webfont.woff
935 ms
raleway-heavy-webfont.woff
958 ms
raleway-thin-webfont.woff
989 ms
u-WUoqrET9fUeobQW7jkRT8E0i7KZn-EPnyo3HZu7kw.woff
24 ms
DXI1ORHCpsQm3Vp6mXoaTRa1RVmPjeKy21_GQJaLlJI.woff
25 ms
k3k702ZOKiLJc3WVjuplzBa1RVmPjeKy21_GQJaLlJI.woff
25 ms
raleway-bold-webfont.woff
1012 ms
collect
21 ms
collect
60 ms
print.css
109 ms
arrow_left.png
115 ms
arrow_right.png
114 ms
helion.cz 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
Form elements do not have associated labels
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
helion.cz 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
Page has valid source maps
helion.cz 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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Helion.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Helion.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.
helion.cz
Open Graph data is detected on the main page of Helion. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: