9 sec in total
465 ms
5.5 sec
3 sec
Click here to check amazing Levny Knih Y content. Otherwise, check out these important facts you probably never knew about levny-knihy.cz
Online internetové knihkupectví, které nabízí širokou nabídku nejnovějších titulů, starých klasik a jiných novinek ze světa knih.
Visit levny-knihy.czWe analyzed Levny-knihy.cz page load time and found that the first response time was 465 ms and then it took 8.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster. This domain responded with an error, which can significantly jeopardize Levny-knihy.cz rating and web reputation
levny-knihy.cz performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value5.2 s
24/100
25%
Value5.7 s
52/100
10%
Value740 ms
40/100
30%
Value0.378
28/100
15%
Value8.2 s
40/100
10%
465 ms
1208 ms
372 ms
399 ms
2652 ms
Our browser made a total of 10 requests to load all elements on the main page. We found that 10% of them (1 request) were addressed to the original Levny-knihy.cz, 70% (7 requests) were made to Ci.vas-hosting.cz and 20% (2 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source Ci.vas-hosting.cz.
Page size can be reduced by 4.1 kB (12%)
35.0 kB
30.9 kB
In fact, the total size of Levny-knihy.cz main page is 35.0 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. Only 5% of websites need less resources to load. Images take 16.7 kB which makes up the majority of the site volume.
Potential reduce by 2.1 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 2.1 kB or 60% of the original size.
Potential reduce by 0 B
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. Levny Knih Y images are well optimized though.
Potential reduce by 63 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 63 B or 66% of the original size.
Potential reduce by 1.9 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. Levny-knihy.cz needs all CSS files to be minified and compressed as it can save up to 1.9 kB or 13% of the original size.
Number of requests can be reduced by 3 (33%)
9
6
The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Levny Knih Y. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
levny-knihy.cz
465 ms
layout.css
1208 ms
popper.min.js
372 ms
jquery.min.js
399 ms
bootstrap-native-v4.min.js
2652 ms
init.js
2975 ms
dot.gif
2969 ms
403.jpg
3397 ms
phone.svg
3721 ms
logo.png
3754 ms
levny-knihy.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.
levny-knihy.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
levny-knihy.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 Levny-knihy.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 Levny-knihy.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.
levny-knihy.cz
Open Graph description is not detected on the main page of Levny Knih Y. 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: