6.2 sec in total
582 ms
5.3 sec
326 ms
Click here to check amazing Czytelnia PWN content for Poland. Otherwise, check out these important facts you probably never knew about czytelnia.pwn.pl
Największa internetowa wypożyczalnia online w Polsce. Wszystkie dziedziny nauk. Ponad 36 000 od PWN oraz 50 innych wydawców.
Visit czytelnia.pwn.plWe analyzed Czytelnia.pwn.pl page load time and found that the first response time was 582 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
czytelnia.pwn.pl performance score
name
value
score
weighting
Value3.5 s
34/100
10%
Value3.9 s
52/100
25%
Value7.1 s
31/100
10%
Value1,110 ms
23/100
30%
Value0.048
99/100
15%
Value10.9 s
21/100
10%
582 ms
455 ms
1340 ms
193 ms
289 ms
Our browser made a total of 154 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Czytelnia.pwn.pl, 62% (95 requests) were made to Ibuk.pl and 12% (18 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Ibuk.pl.
Page size can be reduced by 314.1 kB (34%)
914.8 kB
600.6 kB
In fact, the total size of Czytelnia.pwn.pl main page is 914.8 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. 70% of websites need less resources to load. Images take 575.3 kB which makes up the majority of the site volume.
Potential reduce by 110.2 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. This page needs HTML code to be minified as it can gain 47.5 kB, which is 37% 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 110.2 kB or 87% of the original size.
Potential reduce by 58.8 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. Czytelnia PWN images are well optimized though.
Potential reduce by 36 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. This website has mostly compressed JavaScripts.
Potential reduce by 145.1 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. Czytelnia.pwn.pl needs all CSS files to be minified and compressed as it can save up to 145.1 kB or 83% of the original size.
Number of requests can be reduced by 56 (40%)
139
83
The browser has sent 139 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Czytelnia PWN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.
czytelnia.pwn.pl
582 ms
ibuk.pl
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www.ibuk.pl
1340 ms
jquery.datetimepicker.css
193 ms
style.css
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196 ms
common_classes.css
308 ms
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czytelnia.pwn.pl accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
[aria-hidden="true"] elements contain focusable descendents
[role]s are not contained by their required parent element
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
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.
czytelnia.pwn.pl 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
czytelnia.pwn.pl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Page is blocked from indexing
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
PL
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Czytelnia.pwn.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it does not match the claimed English language. Our system also found out that Czytelnia.pwn.pl 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.
czytelnia.pwn.pl
Open Graph description is not detected on the main page of Czytelnia PWN. 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: