5.7 sec in total
325 ms
5.1 sec
265 ms
Visit databazeknih.cz now to see the best up-to-date Databaze Knih content for Czech Republic and also check out these interesting facts you probably never knew about databazeknih.cz
Databáze knih, hodnocení knih, bazar knih, komentáře, soutěž o knihy. Největší a nejnavštěvovanější knižní web u nás a na Slovensku.
Visit databazeknih.czWe analyzed Databazeknih.cz page load time and found that the first response time was 325 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
databazeknih.cz performance score
name
value
score
weighting
Value3.3 s
41/100
10%
Value10.3 s
0/100
25%
Value11.6 s
4/100
10%
Value2,190 ms
6/100
30%
Value0.001
100/100
15%
Value21.9 s
1/100
10%
325 ms
370 ms
209 ms
525 ms
127 ms
Our browser made a total of 142 requests to load all elements on the main page. We found that 25% of them (36 requests) were addressed to the original Databazeknih.cz, 16% (23 requests) were made to Pixel.rubiconproject.com and 4% (6 requests) were made to Gum.criteo.com. The less responsive or slowest element that took the longest time to load (719 ms) belongs to the original domain Databazeknih.cz.
Page size can be reduced by 659.4 kB (52%)
1.3 MB
600.6 kB
In fact, the total size of Databazeknih.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. 50% of websites need less resources to load. Javascripts take 722.6 kB which makes up the majority of the site volume.
Potential reduce by 44.5 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 44.5 kB or 82% of the original size.
Potential reduce by 24.6 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. Databaze Knih images are well optimized though.
Potential reduce by 486.8 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 486.8 kB or 67% of the original size.
Potential reduce by 103.5 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. Databazeknih.cz needs all CSS files to be minified and compressed as it can save up to 103.5 kB or 84% of the original size.
Number of requests can be reduced by 72 (60%)
121
49
The browser has sent 121 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Databaze Knih. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and as a result speed up the page load time.
databazeknih.cz
325 ms
www.databazeknih.cz
370 ms
defaultn.css
209 ms
main.js
525 ms
satelliteLib-b54c24dc1fb24a614f18cbe602726d4b06972d15.js
127 ms
bb_one2n.js
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bb_one2n.113.65.77.1.js
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analytics.js
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342 ms
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databazeknih.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
Image elements do not have [alt] attributes
Links do not have a discernible 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.
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
databazeknih.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
databazeknih.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Databazeknih.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 Databazeknih.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.
databazeknih.cz
Open Graph description is not detected on the main page of Databaze Knih. 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: