4.3 sec in total
681 ms
3.4 sec
217 ms
Welcome to en.uw.edu.pl homepage info - get ready to check En Uw best content for Poland right away, or after learning these important things about en.uw.edu.pl
Visit en.uw.edu.plWe analyzed En.uw.edu.pl page load time and found that the first response time was 681 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
en.uw.edu.pl performance score
name
value
score
weighting
Value5.5 s
6/100
10%
Value10.1 s
0/100
25%
Value8.7 s
17/100
10%
Value70 ms
99/100
30%
Value0.131
81/100
15%
Value8.5 s
38/100
10%
681 ms
218 ms
896 ms
347 ms
338 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 90% of them (45 requests) were addressed to the original En.uw.edu.pl, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain En.uw.edu.pl.
Page size can be reduced by 639.1 kB (43%)
1.5 MB
853.0 kB
In fact, the total size of En.uw.edu.pl main page is 1.5 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. 30% of websites need less resources to load. Images take 720.9 kB which makes up the majority of the site volume.
Potential reduce by 39.8 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. This page needs HTML code to be minified as it can gain 14.9 kB, which is 33% 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 39.8 kB or 87% of the original size.
Potential reduce by 29.4 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. En Uw images are well optimized though.
Potential reduce by 396.6 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 396.6 kB or 75% of the original size.
Potential reduce by 173.4 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. En.uw.edu.pl needs all CSS files to be minified and compressed as it can save up to 173.4 kB or 87% of the original size.
Number of requests can be reduced by 21 (43%)
49
28
The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of En 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 5 to 1 for CSS and as a result speed up the page load time.
en.uw.edu.pl
681 ms
page-list.css
218 ms
main.css
896 ms
custom-pi.css
347 ms
zegar.css
338 ms
zegar-uw.css
358 ms
jquery-1.10.2.min.js
825 ms
modernizr.custom.min.js
443 ms
main.min.js
1234 ms
angular.min.js
65 ms
class.Core.js
458 ms
zegar.js
593 ms
js
79 ms
jquery.mousewheel.min.js
19 ms
menu3_break.png
156 ms
loupe.png
145 ms
logo-pi.png
145 ms
menu2_bg.png
145 ms
menu2_break.png
146 ms
white_alpha_bg97.png
146 ms
white_gradient.png
218 ms
mini_arrow_r_blue.png
219 ms
slider-resizer.png
227 ms
slider_nav_bt_h.png
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main_section_bg.png
449 ms
central-molecular-zone-8b-340x120.jpg
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insygnia_rektorskie-1024x682-340x120.jpg
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absolwenci-fot.-andrzej-mrozinski-340x1201.jpg
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Pracownicy-administracyjni-250x120.jpg
339 ms
studenci-notatki-340x120.jpg
339 ms
spoleczenstwo_fot.mkazmierczak-340x120.jpeg
362 ms
mini_arrow_r.png
430 ms
i1.png
441 ms
i2.png
451 ms
i3.png
450 ms
Visit-our-Campus-baner.jpg
598 ms
Warsaw.jpg
537 ms
Poland1.jpg
553 ms
social_bg.png
559 ms
social_icons.png
562 ms
analytics.js
96 ms
slider_nav_bt.png
427 ms
collect
16 ms
opensans-regular.svg
789 ms
opensans-light.svg
938 ms
opensans-regular.woff
226 ms
opensans-light.woff
227 ms
film-wizytowka-960x465.jpg
227 ms
students-y-960x465.jpg
228 ms
Warsaw-960x465.jpg
321 ms
en.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.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
en.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
en.uw.edu.pl SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise En.uw.edu.pl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that En.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.
en.uw.edu.pl
Open Graph description is not detected on the main page of En 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: