4.4 sec in total
447 ms
3.6 sec
340 ms
Click here to check amazing Come UW content for Poland. Otherwise, check out these important facts you probably never knew about come.uw.edu.pl
Centre for Open and Multimedia Education, University of Warsaw
Visit come.uw.edu.plWe analyzed Come.uw.edu.pl page load time and found that the first response time was 447 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
come.uw.edu.pl performance score
name
value
score
weighting
Value4.7 s
13/100
10%
Value20.2 s
0/100
25%
Value17.0 s
1/100
10%
Value560 ms
53/100
30%
Value0.005
100/100
15%
Value19.2 s
3/100
10%
447 ms
701 ms
114 ms
227 ms
330 ms
Our browser made a total of 75 requests to load all elements on the main page. We found that 99% of them (74 requests) were addressed to the original Come.uw.edu.pl, 1% (1 request) were made to Stats.come.uw.edu.pl. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Come.uw.edu.pl.
Page size can be reduced by 585.6 kB (12%)
4.8 MB
4.2 MB
In fact, the total size of Come.uw.edu.pl main page is 4.8 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. 40% of websites need less resources to load. Images take 4.2 MB which makes up the majority of the site volume.
Potential reduce by 22.7 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 22.7 kB or 76% of the original size.
Potential reduce by 141.7 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. Come UW images are well optimized though.
Potential reduce by 282.0 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 282.0 kB or 69% of the original size.
Potential reduce by 139.1 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. Come.uw.edu.pl needs all CSS files to be minified and compressed as it can save up to 139.1 kB or 82% of the original size.
Number of requests can be reduced by 11 (15%)
71
60
The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Come 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 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
come.uw.edu.pl
447 ms
come.uw.edu.pl
701 ms
css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css
114 ms
css_qVMNUb5qVG82tzjcG9qbj4jZySDOMB-NCaA04gl12AY.css
227 ms
css_JFU-Pq_NM1w5vTZTc6IrhMChlvCiFnJLebwqw-IMuJg.css
330 ms
css_0nVLBD0_cKFCPaZuATysziDRlIzN0q6AhxtAX4oiteY.css
327 ms
css_z3Jb3MBs3uVPQWh0MBUxA_NMO4qCa--fQ3SHlVlaQb0.css
340 ms
js_hbCs-Jp4M77A5aKC8_pY18-frLS-3JEeApksrZsRZlU.js
567 ms
js_H7q2xORKmR9AN8Qx5spKEIBp7R_wG2apAswJoCUZY7I.js
338 ms
js_R9UbiVw2xuTUI0GZoaqMDOdX0lrZtgX-ono8RVOUEVc.js
347 ms
js_H6QWZMALpm5LZgXMrzCxunrdMFDHSLGGnqSdZyIDySU.js
543 ms
js_eq-I_e7MY7Q6hsR9-I59Yv8n2Fp3fer3j1TGafVumSQ.js
436 ms
js_7Ukqb3ierdBEL0eowfOKzTkNu-Le97OPm-UqTS5NENU.js
449 ms
js_paiTaEsc1HNeBS2rkLc1NrprKrFnApv70kuY8awAaTI.js
448 ms
logo_UW_full_en.png
227 ms
logo_COME_full_en.png
109 ms
logo_UW_sign_en.png
110 ms
logo_COME_sign_en.png
113 ms
en.png
117 ms
pl.png
114 ms
ico_moodlesearch.png
217 ms
ico_facebook.png
223 ms
ico_googleplus.png
225 ms
ico_youtube.png
227 ms
ps_std.png
235 ms
s01.png
650 ms
s02.png
763 ms
s03.png
794 ms
s04.png
673 ms
s05.png
450 ms
b01.jpg
1043 ms
b02.jpg
905 ms
b03.jpg
1083 ms
b04.jpg
1231 ms
b05.jpg
1131 ms
b06.jpg
906 ms
b07.jpg
1017 ms
b08.jpg
1023 ms
b09.jpg
1130 ms
b10.jpg
1134 ms
sliderList_lt.png
1158 ms
kampus_logo_kolo_en.svg
1192 ms
nowa_platforma1.svg
1241 ms
blog.svg
1239 ms
sc_fid.svg
1246 ms
sc_come2016.svg
1273 ms
sc_eduakcja.svg
1300 ms
sliderList_rt.png
1342 ms
nowa-platforma.png
1563 ms
piwik.js
1023 ms
przerwa-w-necie_17.jpg
1390 ms
OpenSans-Regular.woff
1271 ms
OpenSans-Semibold.woff
1290 ms
2017.05.23-aktual_Kampus-nowy_0.png
1307 ms
2015_1.png
1345 ms
2015_3.png
1376 ms
2015_4.png
1296 ms
2015_2.png
1304 ms
cc_2.png
1346 ms
cc_3.png
1375 ms
cc_4.png
1373 ms
cc_5.png
1394 ms
cc_6.png
1185 ms
cc_9.png
1026 ms
cc_219.png
1008 ms
cc_178.png
951 ms
cc_8.png
922 ms
faq_1.png
840 ms
faq_2.png
837 ms
faq_3.png
765 ms
faq_4.png
771 ms
el_1.png
784 ms
el_2.png
745 ms
el_3.png
721 ms
el_4.png
731 ms
come.uw.edu.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
No form fields have multiple labels
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
come.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
Missing source maps for large first-party JavaScript
come.uw.edu.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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Come.uw.edu.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it does not match the claimed English language. Our system also found out that Come.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.
come.uw.edu.pl
Open Graph data is detected on the main page of Come UW. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: