Tools & Wizards About Us
akademia.linuksa.pl screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

akademia.linuksa.pl

ALX – szkoła programowania, szkolenia IT i kursy informatyczne

Page Load Speed

3.9 sec in total

First Response

400 ms

Resources Loaded

3.1 sec

Page Rendered

382 ms

akademia.linuksa.pl screenshot

About Website

Click here to check amazing Akademia Linuksa content. Otherwise, check out these important facts you probably never knew about akademia.linuksa.pl

Szkolenia Linux, PHP, Java, programowanie, bazy danych i Office. Warszawa, Kraków, Wrocław, Łódź, Poznań, Katowice, Gdańsk. Intensywne kursy oraz profesjonalne szkolenia dla firm.

Visit akademia.linuksa.pl

Key Findings

We analyzed Akademia.linuksa.pl page load time and found that the first response time was 400 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

akademia.linuksa.pl performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

21/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

Network Requests Diagram

akademia.linuksa.pl

400 ms

www.alx.pl

384 ms

www.alx.pl

824 ms

lightbox.css

203 ms

zdp.css

305 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Akademia.linuksa.pl, 62% (26 requests) were made to Alx.pl and 19% (8 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (856 ms) relates to the external source Alx.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 249.0 kB (51%)

Content Size

491.4 kB

After Optimization

242.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Akademia.linuksa.pl main page is 491.4 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. 45% of websites need less resources to load. Javascripts take 169.2 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 29.6 kB

  • Original 37.4 kB
  • After minification 26.8 kB
  • After compression 7.8 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 10.7 kB, which is 28% 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 29.6 kB or 79% of the original size.

Image Optimization

-12%

Potential reduce by 19.2 kB

  • Original 164.0 kB
  • After minification 144.8 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, Akademia Linuksa needs image optimization as it can save up to 19.2 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 97.4 kB

  • Original 169.2 kB
  • After minification 165.8 kB
  • After compression 71.8 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 97.4 kB or 58% of the original size.

CSS Optimization

-85%

Potential reduce by 102.8 kB

  • Original 120.8 kB
  • After minification 96.5 kB
  • After compression 18.0 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. Akademia.linuksa.pl needs all CSS files to be minified and compressed as it can save up to 102.8 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (52%)

Requests Now

31

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Akademia Linuksa. 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.

Network Requests Diagram

akademia.linuksa.pl

akademia.linuksa.pl

400 ms

www.alx.pl

www.alx.pl

384 ms

www.alx.pl

www.alx.pl

824 ms

lightbox.css

lightbox.css

203 ms

zdp.css

zdp.css

305 ms

style.css

style.css

821 ms

style_v2.css

style_v2.css

739 ms

jsi18n

jsi18n

319 ms

jquery.min.js

jquery.min.js

856 ms

utils.js

utils.js

439 ms

zdp.js

zdp.js

405 ms

sticky-header.js

sticky-header.js

423 ms

math-height.js

math-height.js

413 ms

css

css

57 ms

ga.js

ga.js

256 ms

analytics.js

analytics.js

215 ms

head-bg.png

head-bg.png

365 ms

logo.png

logo.png

331 ms

meta-bg.jpg

meta-bg.jpg

332 ms

main-cont-bg.png

main-cont-bg.png

330 ms

UE.jpg

UE.jpg

331 ms

sale.jpg

sale.jpg

654 ms

wynajem.jpg

wynajem.jpg

641 ms

image00.png

image00.png

443 ms

image01.png

image01.png

445 ms

image02.png

image02.png

443 ms

image03.png

image03.png

445 ms

footer-bg.png

footer-bg.png

541 ms

footer-bg-2.png

footer-bg-2.png

647 ms

close.png

close.png

417 ms

u-WUoqrET9fUeobQW7jkRaCWcynf_cDxXwCLxiixG1c.ttf

u-WUoqrET9fUeobQW7jkRaCWcynf_cDxXwCLxiixG1c.ttf

128 ms

DXI1ORHCpsQm3Vp6mXoaTdqQynqKV_9Plp7mupa0S4g.ttf

DXI1ORHCpsQm3Vp6mXoaTdqQynqKV_9Plp7mupa0S4g.ttf

202 ms

MTP_ySUJH_bn48VBG8sNStqQynqKV_9Plp7mupa0S4g.ttf

MTP_ySUJH_bn48VBG8sNStqQynqKV_9Plp7mupa0S4g.ttf

237 ms

k3k702ZOKiLJc3WVjuplzNqQynqKV_9Plp7mupa0S4g.ttf

k3k702ZOKiLJc3WVjuplzNqQynqKV_9Plp7mupa0S4g.ttf

239 ms

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EInbV5DfGHOiMmvb1Xr-htqQynqKV_9Plp7mupa0S4g.ttf

236 ms

xjAJXh38I15wypJXxuGMBl02b4v3fUxqf9CZJ1qUoIA.ttf

xjAJXh38I15wypJXxuGMBl02b4v3fUxqf9CZJ1qUoIA.ttf

237 ms

PRmiXeptR36kaC0GEAetxmYImPRL1w80NlYTQ8LOqf4.ttf

PRmiXeptR36kaC0GEAetxmYImPRL1w80NlYTQ8LOqf4.ttf

238 ms

PRmiXeptR36kaC0GEAetxiBnJMIPt0VoltfALX9gDFQ.ttf

PRmiXeptR36kaC0GEAetxiBnJMIPt0VoltfALX9gDFQ.ttf

273 ms

collect

collect

183 ms

__utm.gif

__utm.gif

149 ms

collect

collect

115 ms

collect

collect

74 ms

Accessibility Review

akademia.linuksa.pl accessibility score

87

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

akademia.linuksa.pl best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

akademia.linuksa.pl SEO score

88

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

High

Tap targets are not sized appropriately

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 Akademia.linuksa.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 Akademia.linuksa.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

akademia.linuksa.pl

Open Graph description is not detected on the main page of Akademia Linuksa. 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: