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Report Summary

About Website

Welcome to haker.edu.pl homepage info - get ready to check Haker best content for Poland right away, or after learning these important things about haker.edu.pl

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name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

81/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.1 s

95/100

10%

haker.edu.pl

389 ms

wp-emoji-release.min.js

188 ms

1456832206index.css

380 ms

1456832206index.js

288 ms

1456832206index.js

193 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 22% of them (15 requests) were addressed to the original Haker.edu.pl, 15% (10 requests) were made to Facebook.com and 10% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (638 ms) relates to the external source Apis.google.com.

Content Size

749.6 kB

After Optimization

298.5 kB

In fact, the total size of Haker.edu.pl main page is 749.6 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. 70% of websites need less resources to load. Javascripts take 355.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 88.7 kB

Original 108.1 kB
After minification 102.2 kB
After compression 19.4 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 88.7 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 652 B

Original 35.0 kB
After minification 34.4 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. Haker images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 176.3 kB

Original 355.3 kB
After minification 351.7 kB
After compression 179.0 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 176.3 kB or 50% of the original size.

CSS Optimization

-74%

Potential reduce by 185.4 kB

Original 251.1 kB
After minification 246.9 kB
After compression 65.7 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. Haker.edu.pl needs all CSS files to be minified and compressed as it can save up to 185.4 kB or 74% of the original size.

Requests Now

After Optimization

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Haker. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

button, link, and menuitem elements do not have accessible names.

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

PL
Language Claimed

PL
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Haker.edu.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Haker.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

haker.edu.pl

Open Graph data is detected on the main page of Haker. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Hakerstwo dla wszystkich! Audyt bezpieczeństwa! | </> haker.edu.pl

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)