Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

dydaktyka.polsl.pl

Strona główna - dydaktyka.polsl.pl

Page Load Speed

3.4 sec in total

First Response

687 ms

Resources Loaded

2.6 sec

Page Rendered

148 ms

dydaktyka.polsl.pl screenshot

About Website

Visit dydaktyka.polsl.pl now to see the best up-to-date Dydaktyka Polsl content for Poland and also check out these interesting facts you probably never knew about dydaktyka.polsl.pl

Visit dydaktyka.polsl.pl

Key Findings

We analyzed Dydaktyka.polsl.pl page load time and found that the first response time was 687 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

dydaktyka.polsl.pl performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value2.7 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.098

90/100

15%

TTI (Time to Interactive)

Value5.1 s

76/100

10%

Network Requests Diagram

dydaktyka.polsl.pl

687 ms

default.aspx

601 ms

owsbrows.js

446 ms

ows.css

556 ms

comp1011-109.css

581 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Dydaktyka.polsl.pl and no external sources were called. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Dydaktyka.polsl.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 576.5 kB (86%)

Content Size

673.6 kB

After Optimization

97.1 kB

In fact, the total size of Dydaktyka.polsl.pl main page is 673.6 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. Only 10% of websites need less resources to load. Javascripts take 553.5 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 41.9 kB

  • Original 49.7 kB
  • After minification 44.6 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. 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 41.9 kB or 84% of the original size.

JavaScript Optimization

-86%

Potential reduce by 473.5 kB

  • Original 553.5 kB
  • After minification 388.2 kB
  • After compression 80.0 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 473.5 kB or 86% of the original size.

CSS Optimization

-87%

Potential reduce by 61.1 kB

  • Original 70.4 kB
  • After minification 54.4 kB
  • After compression 9.3 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. Dydaktyka.polsl.pl needs all CSS files to be minified and compressed as it can save up to 61.1 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (47%)

Requests Now

17

After Optimization

9

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dydaktyka Polsl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

dydaktyka.polsl.pl accessibility score

62

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[accesskey] values are not unique

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

Best Practices

dydaktyka.polsl.pl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

dydaktyka.polsl.pl SEO score

58

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Dydaktyka.polsl.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 Dydaktyka.polsl.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 Dydaktyka Polsl. 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: