3.4 sec in total
275 ms
2.7 sec
419 ms
Click here to check amazing Usosweb Uw content for Poland. Otherwise, check out these important facts you probably never knew about usosweb.uw.edu.pl
Visit usosweb.uw.edu.plWe analyzed Usosweb.uw.edu.pl page load time and found that the first response time was 275 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
usosweb.uw.edu.pl performance score
name
value
score
weighting
Value5.5 s
6/100
10%
Value5.6 s
17/100
25%
Value8.4 s
19/100
10%
Value20 ms
100/100
30%
Value0
100/100
15%
Value5.5 s
71/100
10%
275 ms
116 ms
233 ms
349 ms
432 ms
Our browser made a total of 27 requests to load all elements on the main page. We found that all of those requests were addressed to Usosweb.uw.edu.pl and no external sources were called. The less responsive or slowest element that took the longest time to load (966 ms) belongs to the original domain Usosweb.uw.edu.pl.
Page size can be reduced by 463.6 kB (71%)
651.7 kB
188.1 kB
In fact, the total size of Usosweb.uw.edu.pl main page is 651.7 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. 15% of websites need less resources to load. Javascripts take 516.9 kB which makes up the majority of the site volume.
Potential reduce by 19.9 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 19.9 kB or 69% of the original size.
Potential reduce by 1.2 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. Usosweb Uw images are well optimized though.
Potential reduce by 365.9 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 365.9 kB or 71% of the original size.
Potential reduce by 76.6 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. Usosweb.uw.edu.pl needs all CSS files to be minified and compressed as it can save up to 76.6 kB or 84% of the original size.
Number of requests can be reduced by 13 (50%)
26
13
The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Usosweb Uw. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
kontroler.php
275 ms
tooltipster.css
116 ms
jquery-usos.css
233 ms
jquery-ui-1.10.1.custom.css
349 ms
jquery.fancybox-1.3.4.css
432 ms
kontroler.php
726 ms
jquery-1.9.1.min.js
903 ms
jquery-migrate-1.1.0.min.js
453 ms
jquery-ui-1.10.1.custom.min.js
845 ms
latest-bundle.min.js
946 ms
common.js
644 ms
URI-min.js
679 ms
jquery.fancybox-1.3.4.pack.js
754 ms
kontroler.php
966 ms
changeLang.css
836 ms
changeLang.js
860 ms
bg.gif
227 ms
uw_bg.png
226 ms
uw_kropki.gif
123 ms
d2.png
117 ms
d1.png
252 ms
kontroler.php
134 ms
flag_en.png
230 ms
tab_selected.png
240 ms
tab_hover.png
247 ms
d3.png
341 ms
menu_arrow.png
340 ms
usosweb.uw.edu.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.
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
List items (<li>) are not contained within <ul> or <ol> parent elements.
usosweb.uw.edu.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
Page has valid source maps
usosweb.uw.edu.pl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
PL
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Usosweb.uw.edu.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 Usosweb.uw.edu.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.
usosweb.uw.edu.pl
Open Graph description is not detected on the main page of Usosweb Uw. 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: