7.3 sec in total
587 ms
6.4 sec
324 ms
Visit pdf.onepress.pl now to see the best up-to-date Pdf Onepress content for Poland and also check out these interesting facts you probably never knew about pdf.onepress.pl
W księgarni można zapoznać się z ofertą Wydawnictwa Helion (opisy, fragmenty książek, opinie czytelników, spisy treści, recenzje). Można także dokonać zakupu wybranych książek (codziennie inna książka...
Visit pdf.onepress.plWe analyzed Pdf.onepress.pl page load time and found that the first response time was 587 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
pdf.onepress.pl performance score
name
value
score
weighting
Value5.0 s
10/100
10%
Value13.6 s
0/100
25%
Value17.7 s
0/100
10%
Value2,540 ms
4/100
30%
Value0.38
27/100
15%
Value16.3 s
5/100
10%
587 ms
3737 ms
661 ms
441 ms
74 ms
Our browser made a total of 102 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Pdf.onepress.pl, 87% (89 requests) were made to Czytelnia.helion.pl and 3% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.7 sec) relates to the external source Czytelnia.helion.pl.
Page size can be reduced by 287.1 kB (42%)
683.8 kB
396.6 kB
In fact, the total size of Pdf.onepress.pl main page is 683.8 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. 40% of websites need less resources to load. Images take 286.0 kB which makes up the majority of the site volume.
Potential reduce by 89.8 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 89.8 kB or 83% of the original size.
Potential reduce by 16.7 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. Pdf Onepress images are well optimized though.
Potential reduce by 122.6 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 122.6 kB or 55% of the original size.
Potential reduce by 58.1 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. Pdf.onepress.pl needs all CSS files to be minified and compressed as it can save up to 58.1 kB or 86% of the original size.
Number of requests can be reduced by 33 (34%)
98
65
The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pdf Onepress. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.
pdf.onepress.pl
587 ms
czytelnia.helion.pl
3737 ms
all.js
661 ms
all.css
441 ms
conversion.js
74 ms
jquery.cookie.js
112 ms
jquery.lazy.min.js
222 ms
sblam.js.php
224 ms
27 ms
logo_hel_topkamini.png
148 ms
butt_szukaj.png
146 ms
ico_cart_topka.png
147 ms
k.gif
149 ms
logo_helionpl.png
150 ms
logo162_35.gif
234 ms
znaczek-laureat.jpg
232 ms
szukaj2.gif
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fotdzi.jpg
234 ms
koszszary.gif
232 ms
frag_ks.gif
231 ms
ebizp2.jpg
345 ms
55.gif
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frag.gif
340 ms
codeig.jpg
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45.gif
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prwiue.jpg
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ppwsma.jpg
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budros.jpg
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nawykw.jpg
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scalao.jpg
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andrec.jpg
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podfre.jpg
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mosome.jpg
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max4bi.jpg
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kastyl.jpg
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jspxml.jpg
670 ms
jsplek.jpg
671 ms
javawz.jpg
768 ms
analytics.js
27 ms
120 ms
sdk.js
58 ms
linkid.js
26 ms
collect
29 ms
collect
93 ms
104 ms
_users.php
648 ms
jascbi.jpg
642 ms
promodnia.jpg
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innepromocje.gif
641 ms
123 ms
ico_fb_wkontakcie.png
631 ms
xd_arbiter.php
47 ms
xd_arbiter.php
82 ms
ico_g_wkontakcie.png
666 ms
ico_yt_wkontakcie.png
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ico_tw_wkontakcie.png
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ico_insta_wkontakcie.png
670 ms
newsletter.png
670 ms
rss.png
670 ms
livechat.png
662 ms
book.png
662 ms
wyslij.gif
662 ms
pp_icon.gif
662 ms
poland.jpg
662 ms
platnosci.png
771 ms
shadow.png
667 ms
topka_bcg.jpg
665 ms
nasze.png
665 ms
logo_one.png
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logo_sen.png
665 ms
logo_sep.png
771 ms
logo_edu.png
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logo_bez.png
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logo_ebp.png
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logo_video.png
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input_szukaj.png
655 ms
dostawa.png
762 ms
box_header_left.png
667 ms
catalogue_item.png
666 ms
catalogue_item_bold.png
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content_header.png
665 ms
box.gif
664 ms
pdf.gif
770 ms
bullet_light.png
667 ms
gradient_h.gif
810 ms
box_header_right.png
665 ms
red_bg.png
665 ms
rd_glowna_sz.png
664 ms
rd_koszyk_sz.png
769 ms
rd_dostawa_sz.png
666 ms
rd_platnosci_sz.png
664 ms
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rd_regulamin_sz.png
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769 ms
ico_close.png
769 ms
pdf.onepress.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 input fields do not have accessible names
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
[id] attributes on active, focusable elements are not unique
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
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>).
pdf.onepress.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
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
pdf.onepress.pl SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
ISO-8859-2
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pdf.onepress.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 Pdf.onepress.pl main page’s claimed encoding is iso-8859-2. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
pdf.onepress.pl
Open Graph description is not detected on the main page of Pdf Onepress. 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: