Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 78

    SEO

    Google-friendlier than
    40% of websites

ztz.rybnik.pl

Zarząd Transportu Zbiorowego w Rybniku | ZTZ Rybnik

Page Load Speed

16.6 sec in total

First Response

4.3 sec

Resources Loaded

11.5 sec

Page Rendered

736 ms

ztz.rybnik.pl screenshot

About Website

Visit ztz.rybnik.pl now to see the best up-to-date ZTZ Rybnik content for Poland and also check out these interesting facts you probably never knew about ztz.rybnik.pl

Oficjalna strona Zarządu Transportu Zbiorowego miasta Rybnik. Tu znajdziesz wszystkie połączenia linii autobusowych miasta Rybnik.

Visit ztz.rybnik.pl

Key Findings

We analyzed Ztz.rybnik.pl page load time and found that the first response time was 4.3 sec and then it took 12.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

ztz.rybnik.pl performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value210 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.389

26/100

15%

TTI (Time to Interactive)

Value10.1 s

26/100

10%

Network Requests Diagram

ztz.rybnik.pl

4278 ms

stylesheet.php

5898 ms

stylesheet.php

5845 ms

stylesheet.php

5864 ms

stylesheet.php

5881 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 90% of them (47 requests) were addressed to the original Ztz.rybnik.pl, 4% (2 requests) were made to Google-analytics.com and 4% (2 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (6.7 sec) belongs to the original domain Ztz.rybnik.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 53.5 kB (8%)

Content Size

698.0 kB

After Optimization

644.5 kB

In fact, the total size of Ztz.rybnik.pl main page is 698.0 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. 25% of websites need less resources to load. Images take 654.1 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 20.5 kB

  • Original 26.7 kB
  • After minification 25.5 kB
  • After compression 6.2 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. 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 20.5 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 32.9 kB

  • Original 654.1 kB
  • After minification 621.2 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. ZTZ Rybnik images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 5 (10%)

Requests Now

51

After Optimization

46

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZTZ Rybnik. 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 CSS and as a result speed up the page load time.

Accessibility Review

ztz.rybnik.pl accessibility score

81

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.

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

ztz.rybnik.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

SEO Factors

ztz.rybnik.pl SEO score

78

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

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 doesn't use 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 Ztz.rybnik.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 Ztz.rybnik.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 ZTZ Rybnik. 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: