4.2 sec in total
297 ms
3.5 sec
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Welcome to odbornecasopisy.cz homepage info - get ready to check Odbornecasopisy best content for Czech Republic right away, or after learning these important things about odbornecasopisy.cz
FCC PUBLIC vydává elektrotechnické časopisy ELEKTRO a SVĚTLO a publikace věnované tématům elektrotechniky, osvětlování, energetiky, managementu a duševního vlastnictví. Nakladatelství pořádá odborné s...
Visit odbornecasopisy.czWe analyzed Odbornecasopisy.cz page load time and found that the first response time was 297 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
odbornecasopisy.cz performance score
name
value
score
weighting
Value4.6 s
13/100
10%
Value5.5 s
19/100
25%
Value7.5 s
27/100
10%
Value580 ms
51/100
30%
Value0.096
91/100
15%
Value6.1 s
63/100
10%
297 ms
774 ms
278 ms
190 ms
192 ms
Our browser made a total of 120 requests to load all elements on the main page. We found that 59% of them (71 requests) were addressed to the original Odbornecasopisy.cz, 18% (22 requests) were made to Google-analytics.com and 5% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Odbornecasopisy.cz.
Page size can be reduced by 800.7 kB (36%)
2.3 MB
1.5 MB
In fact, the total size of Odbornecasopisy.cz main page is 2.3 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. 70% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 67.2 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 67.2 kB or 79% of the original size.
Potential reduce by 224.9 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. Obviously, Odbornecasopisy needs image optimization as it can save up to 224.9 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 418.3 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 418.3 kB or 68% of the original size.
Potential reduce by 90.2 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. Odbornecasopisy.cz needs all CSS files to be minified and compressed as it can save up to 90.2 kB or 82% of the original size.
Number of requests can be reduced by 49 (45%)
110
61
The browser has sent 110 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Odbornecasopisy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
odbornecasopisy.cz
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odbornecasopisy.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
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
[id] attributes on active, focusable elements are not unique
Heading elements are not in a sequentially-descending order
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
odbornecasopisy.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
odbornecasopisy.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
Tap targets are not sized appropriately
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Odbornecasopisy.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 Odbornecasopisy.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.
odbornecasopisy.cz
Open Graph data is detected on the main page of Odbornecasopisy. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: