Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 0

    Best Practices

  • 99

    SEO

    Google-friendlier than
    93% of websites

osk.org.pl

Testy na Prawo Jazdy – E-learning Kodeks Drogowy - Testy na Prawo Jazdy – E-learning Kodeks Drogowy

Page Load Speed

7.8 sec in total

First Response

1.1 sec

Resources Loaded

6.2 sec

Page Rendered

555 ms

osk.org.pl screenshot

About Website

Visit osk.org.pl now to see the best up-to-date Osk content and also check out these interesting facts you probably never knew about osk.org.pl

Witamy na stronie! To jest strona główna, którą zobaczy większość odwiedzających, kiedy będzie odwiedzać twoją witrynę po raz pierwszy.

Visit osk.org.pl

Key Findings

We analyzed Osk.org.pl page load time and found that the first response time was 1.1 sec and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

osk.org.pl performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

91/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

7/100

25%

SI (Speed Index)

Value6.6 s

38/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.6 s

58/100

10%

Network Requests Diagram

poprawojazdy.pl

1060 ms

style.min.css

332 ms

all.min.css

444 ms

bootstrap.min.css

335 ms

front.css

345 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that all of those requests were addressed to Osk.org.pl and no external sources were called. The less responsive or slowest element that took the longest time to load (3.4 sec) relates to the external source Poprawojazdy.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 165.1 kB (6%)

Content Size

2.6 MB

After Optimization

2.4 MB

In fact, the total size of Osk.org.pl main page is 2.6 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 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 73.3 kB

  • Original 87.5 kB
  • After minification 75.5 kB
  • After compression 14.2 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 12.0 kB, which is 14% 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 73.3 kB or 84% of the original size.

Image Optimization

-3%

Potential reduce by 55.3 kB

  • Original 2.2 MB
  • After minification 2.1 MB

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. Osk images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 29.9 kB

  • Original 180.7 kB
  • After minification 180.7 kB
  • After compression 150.8 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 29.9 kB or 17% of the original size.

CSS Optimization

-6%

Potential reduce by 6.6 kB

  • Original 103.1 kB
  • After minification 103.1 kB
  • After compression 96.5 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. Osk.org.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 23 (43%)

Requests Now

54

After Optimization

31

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

osk.org.pl accessibility score

94

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.

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

SEO Factors

osk.org.pl SEO score

99

Search Engine Optimization Advices

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

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Osk.org.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 Osk.org.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 data is detected on the main page of Osk. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: