Tools & Wizards About Us
kastor-bike.pl screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

kastor-bike.pl

Kastor - Bike s.c. - Sklep i serwis rowerowy Poznań - Internetowy sklep rowerowy

Page Load Speed

7.4 sec in total

First Response

727 ms

Resources Loaded

3.3 sec

Page Rendered

3.4 sec

kastor-bike.pl screenshot

About Website

Welcome to kastor-bike.pl homepage info - get ready to check Kastor Bike best content for Poland right away, or after learning these important things about kastor-bike.pl

Witamy na stronie internetowego sklepu/serwisu rowerowego Kastor - Bike z Poznania. Znajdziesz u nas szeroki wybór części Shimano, kaski Lazer, ogumienie Continetal, akcesoria PRO.

Visit kastor-bike.pl

Key Findings

We analyzed Kastor-bike.pl page load time and found that the first response time was 727 ms 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

kastor-bike.pl performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

24/100

25%

SI (Speed Index)

Value16.0 s

0/100

10%

TBT (Total Blocking Time)

Value3,880 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.14

79/100

15%

TTI (Time to Interactive)

Value25.4 s

0/100

10%

Network Requests Diagram

kastor-bike.pl

727 ms

gtm.js

100 ms

fbevents.js

28 ms

script.js

637 ms

js

83 ms

Our browser made a total of 185 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Kastor-bike.pl, 17% (32 requests) were made to Static.xx.fbcdn.net and 16% (30 requests) were made to Static5.redcart.pl. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Static1.redcart.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 413.7 kB (9%)

Content Size

4.5 MB

After Optimization

4.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kastor-bike.pl main page is 4.5 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 412.3 kB

  • Original 457.2 kB
  • After minification 411.8 kB
  • After compression 45.0 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 412.3 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 878 B

  • Original 3.7 MB
  • After minification 3.7 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. Kastor Bike images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 525 B

  • Original 368.0 kB
  • After minification 368.0 kB
  • After compression 367.4 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.

CSS Optimization

-0%

Potential reduce by 51 B

  • Original 30.0 kB
  • After minification 30.0 kB
  • After compression 30.0 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. Kastor-bike.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 54 (30%)

Requests Now

179

After Optimization

125

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 179 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kastor Bike. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kastor-bike.pl

kastor-bike.pl

727 ms

gtm.js

gtm.js

100 ms

fbevents.js

fbevents.js

28 ms

script.js

script.js

637 ms

js

js

83 ms

css

css

95 ms

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645 ms

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936 ms

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1025 ms

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Accessibility Review

kastor-bike.pl accessibility score

71

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

kastor-bike.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

kastor-bike.pl SEO score

91

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kastor-bike.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 Kastor-bike.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

kastor-bike.pl

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