4.2 sec in total
234 ms
3.6 sec
313 ms
Click here to check amazing Databook content for Czech Republic. Otherwise, check out these important facts you probably never knew about databook.cz
Elektronické knihy Databook.cz e-knihy ve formátu PDF, ePub a mobi do čtečky, počítače i tabletu. Všechny ke čtení už za pár minut. Parádní ebooky za super ceny!
Visit databook.czWe analyzed Databook.cz page load time and found that the first response time was 234 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
databook.cz performance score
name
value
score
weighting
Value5.4 s
6/100
10%
Value6.2 s
11/100
25%
Value8.6 s
17/100
10%
Value270 ms
81/100
30%
Value0
100/100
15%
Value10.9 s
21/100
10%
234 ms
445 ms
215 ms
226 ms
220 ms
Our browser made a total of 106 requests to load all elements on the main page. We found that 88% of them (93 requests) were addressed to the original Databook.cz, 3% (3 requests) were made to Facebook.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Databook.cz.
Page size can be reduced by 542.0 kB (40%)
1.4 MB
813.0 kB
In fact, the total size of Databook.cz main page is 1.4 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. Images take 818.0 kB which makes up the majority of the site volume.
Potential reduce by 74.6 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. This page needs HTML code to be minified as it can gain 19.1 kB, which is 21% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 74.6 kB or 80% of the original size.
Potential reduce by 145.3 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, Databook needs image optimization as it can save up to 145.3 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 289.1 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 289.1 kB or 72% of the original size.
Potential reduce by 33.0 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. Databook.cz needs all CSS files to be minified and compressed as it can save up to 33.0 kB or 81% of the original size.
Number of requests can be reduced by 56 (54%)
103
47
The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Databook. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
databook.cz
234 ms
www.databook.cz
445 ms
rur.css
215 ms
styl.css
226 ms
pi.css
220 ms
jquery-1.7.1.min.js
344 ms
jquery.lightbox-0.5.js
221 ms
jquery.lightbox-0.5.css
1053 ms
obchod.js
318 ms
sio.js
327 ms
jquery.easing.1.3.js
329 ms
jquery.cycle.all.min.js
331 ms
jquery.coda-slider-2.0.js
423 ms
script.js
435 ms
jquery-ui-1.8.2.custom.min.js
672 ms
ga.js
10 ms
fbds.js
9 ms
logo.png
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payu-tlacitko.jpg
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tablet.png
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sdk.js
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725 ms
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databook.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.
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
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
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
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
databook.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
databook.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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Databook.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 Databook.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.
databook.cz
Open Graph description is not detected on the main page of Databook. 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: