11 sec in total
359 ms
10.3 sec
423 ms
Welcome to battery.cz homepage info - get ready to check Battery best content for Czech Republic right away, or after learning these important things about battery.cz
5 PRODEJEN BATTERY.CZ. V našich internetových obchodech naleznete široký sortiment baterií a příslušenství za velmi příznivé ceny. Díky obchodním a skladovacím plochám o více než 2200 m2 si můžeme dov...
Visit battery.czWe analyzed Battery.cz page load time and found that the first response time was 359 ms and then it took 10.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
battery.cz performance score
name
value
score
weighting
Value4.4 s
17/100
10%
Value13.8 s
0/100
25%
Value8.6 s
17/100
10%
Value3,090 ms
2/100
30%
Value0.482
17/100
15%
Value15.8 s
6/100
10%
359 ms
984 ms
342 ms
233 ms
235 ms
Our browser made a total of 224 requests to load all elements on the main page. We found that 90% of them (201 requests) were addressed to the original Battery.cz, 1% (3 requests) were made to Data.shean.cz and 1% (2 requests) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Battery.cz.
Page size can be reduced by 488.6 kB (37%)
1.3 MB
826.0 kB
In fact, the total size of Battery.cz main page is 1.3 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. 55% of websites need less resources to load. Images take 924.5 kB which makes up the majority of the site volume.
Potential reduce by 185.0 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 185.0 kB or 89% of the original size.
Potential reduce by 188.9 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, Battery needs image optimization as it can save up to 188.9 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 34.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 34.2 kB or 40% of the original size.
Potential reduce by 80.4 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. Battery.cz needs all CSS files to be minified and compressed as it can save up to 80.4 kB or 84% of the original size.
Number of requests can be reduced by 25 (11%)
219
194
The browser has sent 219 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Battery. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
battery.cz
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battery.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.
battery.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
Browser errors were logged to the console
Page has valid source maps
battery.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
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Battery.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 Battery.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.
battery.cz
Open Graph description is not detected on the main page of Battery. 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: