Tools & Wizards About Us

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

cs.pwr.edu.pl

Katedra Podstaw Informatyki Politechniki Wrocławskiej

Page Load Speed

2.2 sec in total

First Response

486 ms

Resources Loaded

1.6 sec

Page Rendered

131 ms

About Website

Click here to check amazing Cs Pwr content for Poland. Otherwise, check out these important facts you probably never knew about cs.pwr.edu.pl

Web pages of the Department of Fundamentals of Computer Science at Wrocław University of Science and Technology

Visit cs.pwr.edu.pl

Key Findings

We analyzed Cs.pwr.edu.pl page load time and found that the first response time was 486 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

cs.pwr.edu.pl performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

cs.pwr.edu.pl

486 ms

cs.pwr.edu.pl

514 ms

app.css

281 ms

modernizr.js

477 ms

Callendar.js

367 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that all of those requests were addressed to Cs.pwr.edu.pl and no external sources were called. The less responsive or slowest element that took the longest time to load (514 ms) belongs to the original domain Cs.pwr.edu.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 30.4 kB (20%)

Content Size

149.3 kB

After Optimization

118.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cs.pwr.edu.pl main page is 149.3 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 76.5 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 15.7 kB

  • Original 20.3 kB
  • After minification 20.0 kB
  • After compression 4.6 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 15.7 kB or 77% of the original size.

Image Optimization

-13%

Potential reduce by 2.9 kB

  • Original 22.6 kB
  • After minification 19.7 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. Obviously, Cs Pwr needs image optimization as it can save up to 2.9 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-15%

Potential reduce by 11.7 kB

  • Original 76.5 kB
  • After minification 76.5 kB
  • After compression 64.8 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 11.7 kB or 15% of the original size.

CSS Optimization

-0%

Potential reduce by 114 B

  • Original 29.9 kB
  • After minification 29.9 kB
  • After compression 29.8 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. Cs.pwr.edu.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 5 (36%)

Requests Now

14

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cs Pwr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cs.pwr.edu.pl accessibility score

94

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best Practices

cs.pwr.edu.pl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

cs.pwr.edu.pl SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cs.pwr.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 Cs.pwr.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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Cs Pwr. 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: