7.7 sec in total
345 ms
7.2 sec
148 ms
Visit librus.pl now to see the best up-to-date Librus content for Poland and also check out these interesting facts you probably never knew about librus.pl
Systemy informatyczne oraz usługi wspierające polską edukację. Nasze kluczowe rozwiązanie to coś więcej niż dziennik elektroniczny.
Visit librus.plWe analyzed Librus.pl page load time and found that the first response time was 345 ms and then it took 7.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
librus.pl performance score
name
value
score
weighting
Value2.8 s
56/100
10%
Value12.1 s
0/100
25%
Value24.0 s
0/100
10%
Value14,920 ms
0/100
30%
Value0.008
100/100
15%
Value19.5 s
2/100
10%
345 ms
1507 ms
332 ms
449 ms
336 ms
Our browser made a total of 78 requests to load all elements on the main page. We found that 97% of them (76 requests) were addressed to the original Librus.pl, 3% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Librus.pl.
Page size can be reduced by 710.1 kB (33%)
2.2 MB
1.5 MB
In fact, the total size of Librus.pl main page is 2.2 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. 35% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.
Potential reduce by 34.0 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 5.7 kB, which is 14% 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 34.0 kB or 81% of the original size.
Potential reduce by 74.6 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. Librus images are well optimized though.
Potential reduce by 492.2 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 492.2 kB or 68% of the original size.
Potential reduce by 109.3 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. Librus.pl needs all CSS files to be minified and compressed as it can save up to 109.3 kB or 82% of the original size.
Number of requests can be reduced by 30 (39%)
76
46
The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Librus. 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 8 to 1 for CSS and as a result speed up the page load time.
librus.pl
345 ms
www.librus.pl
1507 ms
style_main.css
332 ms
style_960.css
449 ms
coda-slider-2.0.css
336 ms
jquery.fancybox-1.3.4.css
339 ms
nextgen_gallery_related_images.css
336 ms
se-styles.css
338 ms
pagenavi-css.css
665 ms
ajax.js
661 ms
jquery.js
791 ms
jquery-migrate.min.js
672 ms
persist.js
674 ms
store.js
772 ms
ngg_store.js
990 ms
lightbox_context.js
995 ms
all.min.js
1359 ms
jquery.rwdImageMaps.min.js
1008 ms
scripts.js
1107 ms
modernizr.js
1125 ms
wp-emoji-release.min.js
859 ms
ga.js
69 ms
headerBg.jpg
226 ms
menuBg.jpg
337 ms
logo_final.png
456 ms
logoFull@2x.png
458 ms
menuEnd.jpg
344 ms
ucze%C5%84.png
920 ms
baner_MM3_28092015.png
1340 ms
baner_Antyplagiat.png
894 ms
baner_SMSInfo1_28092015.png
1126 ms
Doradca_Dyrektora_20102015.png
1326 ms
baner_OneDrive.png
1125 ms
rodzic.png
1673 ms
btn239.png
1249 ms
btn239s.png
1455 ms
kontakt_icon.png
1456 ms
info_icon.png
1585 ms
synergia_nauczyciel.png
1779 ms
alertBg.png
1660 ms
alertS.png
1792 ms
social_stripe.png
1794 ms
logoFull.png
1921 ms
fArrL.png
2004 ms
fArrR.png
2003 ms
AIG_szare_19.png
2106 ms
plagiat-szare_18.png
2120 ms
megamatma_szare_18.png
2127 ms
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2264 ms
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2340 ms
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2340 ms
patrnerzy_szare_11.png
2433 ms
patrnerzy_szare_10.png
2447 ms
patrnerzy_szare_09.png
2464 ms
patrnerzy_szare_08.png
2602 ms
patrnerzy_szare_17-1.png
2668 ms
patrnerzy_szare_04.png
2675 ms
patrnerzy_szare_02.png
2768 ms
__utm.gif
13 ms
AIG_kolor_19.png
2561 ms
plagiat-kolor_18.png
2467 ms
megamatna_kolor_18.png
2596 ms
new_17.png
2566 ms
new_16.png
2569 ms
new_14.png
2214 ms
patrnerzy_kolor_11.png
2202 ms
patrnerzy_kolor_10.png
2015 ms
patrnerzy_kolor_09.png
2158 ms
patrnerzy_kolor_08.png
2093 ms
patrnerzy_kolor_17.png
2041 ms
patrnerzy_kolor_04.png
2105 ms
patrnerzy_kolor_02.png
1987 ms
ajax-loader.gif
2002 ms
karuzela_buttony.png
2018 ms
bookmarkL.png
2010 ms
bookmarkR.png
2023 ms
bookmarkS.png
1992 ms
style_min.css
161 ms
librus.pl 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
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.
librus.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
General
Impact
Issue
Detected JavaScript libraries
librus.pl SEO score
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
PL
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Librus.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish 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 Librus.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.
librus.pl
Open Graph description is not detected on the main page of Librus. 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: