4 sec in total
323 ms
3.2 sec
483 ms
Welcome to energetikainfo.cz homepage info - get ready to check Energetikainfo best content right away, or after learning these important things about energetikainfo.cz
On-line informace z oblasti výroby, distribuce a prodeje energií. Novely zákonů a vyhlášek. Technické normy v energetice. Elektroenergetika, teplárenství, plynárenství. Obnovitelné zdroje energie. Čin...
Visit energetikainfo.czWe analyzed Energetikainfo.cz page load time and found that the first response time was 323 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
energetikainfo.cz performance score
name
value
score
weighting
Value6.2 s
3/100
10%
Value6.7 s
7/100
25%
Value9.3 s
12/100
10%
Value1,140 ms
22/100
30%
Value0
100/100
15%
Value13.4 s
11/100
10%
323 ms
831 ms
943 ms
727 ms
204 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 31% of them (20 requests) were addressed to the original Energetikainfo.cz, 58% (37 requests) were made to Image.dashofer.cz and 3% (2 requests) were made to C.imedia.cz. The less responsive or slowest element that took the longest time to load (948 ms) relates to the external source Image.dashofer.cz.
Page size can be reduced by 305.3 kB (39%)
785.5 kB
480.2 kB
In fact, the total size of Energetikainfo.cz main page is 785.5 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. 40% of websites need less resources to load. Images take 422.8 kB which makes up the majority of the site volume.
Potential reduce by 70.3 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 70.3 kB or 80% of the original size.
Potential reduce by 31.5 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. Energetikainfo images are well optimized though.
Potential reduce by 113.4 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 113.4 kB or 65% of the original size.
Potential reduce by 90.1 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. Energetikainfo.cz needs all CSS files to be minified and compressed as it can save up to 90.1 kB or 89% of the original size.
Number of requests can be reduced by 36 (59%)
61
25
The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Energetikainfo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
energetikainfo.cz
323 ms
www.energetikainfo.cz
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min.css.phtml
943 ms
animate.min.css
727 ms
font-awesome.min.css
204 ms
min.css.phtml
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cif.basicfuncs.js
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min.js.phtml
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dhtmlxtree.css
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search.js
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cif.portalfx.js
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jquery.easing.min.js
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jquery.orbit.js
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liveportal.public.js
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cif.prospectvalid.js
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cif.feedbackpopup.js
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conversion.js
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retargeting.js
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dc.js
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background_body.gif
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wrap_bg.png
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logo_258.png
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logo_print_258.png
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vid-zoom-icon.gif
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zamek_deactivated.png
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fontawesome-webfont.woff
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vd_onliberg_974x300_01.jpg
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garance.png
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garance2.png
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ico_dashofer.gif
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ico_kursy.gif
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ico_techportal.gif
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ico_qm.gif
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ico_bozp.gif
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vd_logo.png
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ajax-loader-big.gif
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loader.gif
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slider-bkg-shadow.png
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close_button_new.gif
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more-less-docs-button.png
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arrow-black-icon.gif
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background_bottom.png
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background_bottomRepeat.gif
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most-read.png
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most_read_answ.png
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wshop-icon.png
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background_footer.png
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retargeting
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wait.gif
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skryt.gif
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ui-icons_454545_256x240.png
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searchcontent.phtml
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onlib_gen3_style_print.css
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energetikainfo.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
energetikainfo.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
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
energetikainfo.cz 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
Tap targets are not sized appropriately
CS
N/A
ISO-8859-2
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Energetikainfo.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 Energetikainfo.cz main page’s claimed encoding is iso-8859-2. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
energetikainfo.cz
Open Graph description is not detected on the main page of Energetikainfo. 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: