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Welcome to upolujebooka.pl homepage info - get ready to check Upolujebooka best content for Poland right away, or after learning these important things about upolujebooka.pl
Największa uporządkowana baza ebooków w Polsce, najtańsze ebooki online które możecie pobrać prawie za darmo na swoje czytniki w formacie PDF, EPUB, MOBI (kindle)
Visit upolujebooka.plWe analyzed Upolujebooka.pl page load time and found that the first response time was 677 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
upolujebooka.pl performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value9.2 s
1/100
25%
Value5.3 s
59/100
10%
Value1,670 ms
11/100
30%
Value0.411
24/100
15%
Value9.1 s
33/100
10%
677 ms
33 ms
32 ms
231 ms
232 ms
Our browser made a total of 154 requests to load all elements on the main page. We found that 88% of them (136 requests) were addressed to the original Upolujebooka.pl, 2% (3 requests) were made to Fonts.gstatic.com and 2% (3 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (941 ms) belongs to the original domain Upolujebooka.pl.
Page size can be reduced by 243.8 kB (18%)
1.3 MB
1.1 MB
In fact, the total size of Upolujebooka.pl 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. 65% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 129.6 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 19.5 kB, which is 12% 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 129.6 kB or 80% of the original size.
Potential reduce by 56.3 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. Upolujebooka images are well optimized though.
Potential reduce by 57.4 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 57.4 kB or 59% of the original size.
Potential reduce by 411 B
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. Upolujebooka.pl needs all CSS files to be minified and compressed as it can save up to 411 B or 63% of the original size.
Number of requests can be reduced by 24 (16%)
149
125
The browser has sent 149 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Upolujebooka. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
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upolujebooka.pl 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
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>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
upolujebooka.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
Browser errors were logged to the console
Page has valid source maps
upolujebooka.pl 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
PL
PL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Upolujebooka.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Upolujebooka.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.
upolujebooka.pl
Open Graph data is detected on the main page of Upolujebooka. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: