2.5 sec in total
161 ms
2.2 sec
186 ms
Welcome to usosweb.vistula.edu.pl homepage info - get ready to check Usosweb Vistula best content for Poland right away, or after learning these important things about usosweb.vistula.edu.pl
Visit usosweb.vistula.edu.plWe analyzed Usosweb.vistula.edu.pl page load time and found that the first response time was 161 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
usosweb.vistula.edu.pl performance score
name
value
score
weighting
Value5.5 s
6/100
10%
Value6.6 s
8/100
25%
Value11.6 s
5/100
10%
Value80 ms
99/100
30%
Value0.028
100/100
15%
Value5.5 s
70/100
10%
161 ms
185 ms
110 ms
220 ms
216 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that all of those requests were addressed to Usosweb.vistula.edu.pl and no external sources were called. The less responsive or slowest element that took the longest time to load (614 ms) belongs to the original domain Usosweb.vistula.edu.pl.
Page size can be reduced by 451.6 kB (71%)
632.4 kB
180.7 kB
In fact, the total size of Usosweb.vistula.edu.pl main page is 632.4 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. 30% of websites need less resources to load. Javascripts take 516.9 kB which makes up the majority of the site volume.
Potential reduce by 8.1 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 1.4 kB, which is 13% 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 8.1 kB or 74% of the original size.
Potential reduce by 1.1 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 Vistula 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.vistula.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 (54%)
24
11
The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Usosweb Vistula. 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
161 ms
kontroler.php
185 ms
tooltipster.css
110 ms
jquery-usos.css
220 ms
jquery-ui-1.10.1.custom.css
216 ms
jquery.fancybox-1.3.4.css
224 ms
kontroler.php
294 ms
jquery-1.9.1.min.js
347 ms
jquery-migrate-1.1.0.min.js
232 ms
jquery-ui-1.10.1.custom.min.js
553 ms
latest-bundle.min.js
547 ms
common.js
336 ms
URI-min.js
358 ms
jquery.fancybox-1.3.4.pack.js
405 ms
kontroler.php
614 ms
changeLang.css
455 ms
changeLang.js
456 ms
bg.gif
109 ms
d2.png
113 ms
d1.png
108 ms
kontroler.php
270 ms
flag_en.png
117 ms
tab_selected.png
117 ms
tab_hover.png
214 ms
d3.png
215 ms
menu_arrow.png
224 ms
usosweb.vistula.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.
usosweb.vistula.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.vistula.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.vistula.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.vistula.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.vistula.edu.pl
Open Graph description is not detected on the main page of Usosweb Vistula. 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: