Tools & Wizards About Us

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

ztz.rybnik.pl

Zarząd Transportu Zbiorowego w Rybniku | ZTZ Rybnik

Page Load Speed

3 sec in total

First Response

492 ms

Resources Loaded

2.3 sec

Page Rendered

163 ms

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 492 ms and then it took 2.5 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

ztz.rybnik.pl performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value8.9 s

34/100

10%

Network Requests Diagram

ztz.rybnik.pl

492 ms

www.ztz.rybnik.pl

510 ms

bootstrap.min.css

235 ms

style.css

231 ms

ztz_logo_new.jpg

230 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 91% of them (30 requests) were addressed to the original Ztz.rybnik.pl, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (792 ms) belongs to the original domain Ztz.rybnik.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 123.1 kB (12%)

Content Size

1.0 MB

After Optimization

917.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ztz.rybnik.pl main page is 1.0 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. 45% of websites need less resources to load. Images take 664.0 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 19.7 kB

  • Original 23.9 kB
  • After minification 13.3 kB
  • After compression 4.3 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 10.6 kB, which is 44% 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 19.7 kB or 82% of the original size.

Image Optimization

-9%

Potential reduce by 62.6 kB

  • Original 664.0 kB
  • After minification 601.4 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. ZTZ Rybnik images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 39.7 kB

  • Original 314.8 kB
  • After minification 314.8 kB
  • After compression 275.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 39.7 kB or 13% of the original size.

CSS Optimization

-3%

Potential reduce by 1.0 kB

  • Original 37.9 kB
  • After minification 37.9 kB
  • After compression 36.8 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. Ztz.rybnik.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (48%)

Requests Now

23

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 23 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 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

ztz.rybnik.pl accessibility score

91

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

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

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

ztz.rybnik.pl SEO score

90

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 doesn't use 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 Ztz.rybnik.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 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: