Tools & Wizards About Us
prologshop.cz screenshot

Report Summary

  • 62

    Performance

    Renders faster than
    76% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

prologshop.cz

Prologshop | Jízdní kola e-shop | Author, Giant, Liv, Specialized, Felt, Lovelec, Ridley

Page Load Speed

4.8 sec in total

First Response

1.3 sec

Resources Loaded

2.8 sec

Page Rendered

712 ms

prologshop.cz screenshot

About Website

Click here to check amazing Prologshop content for Czech Republic. Otherwise, check out these important facts you probably never knew about prologshop.cz

E-shop jízdní kola Author, Giant, Liv, Specialized, Felt, Lovelec, Ridley

Visit prologshop.cz

Key Findings

We analyzed Prologshop.cz page load time and found that the first response time was 1.3 sec and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

prologshop.cz performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value43.2 s

0/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.036

100/100

15%

TTI (Time to Interactive)

Value5.3 s

73/100

10%

Network Requests Diagram

prologshop.cz

1264 ms

style

132 ms

jquery.fancybox-1.3.4.css

192 ms

modernizr-1.5.min.js

194 ms

jquery-1.4.2.min.js

289 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 80% of them (64 requests) were addressed to the original Prologshop.cz, 13% (10 requests) were made to Static.xx.fbcdn.net and 3% (2 requests) were made to Heureka.cz. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Prologshop.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 306.1 kB (5%)

Content Size

6.8 MB

After Optimization

6.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Prologshop.cz main page is 6.8 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. 50% of websites need less resources to load. Images take 6.6 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 62.2 kB

  • Original 77.2 kB
  • After minification 68.5 kB
  • After compression 15.0 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. This page needs HTML code to be minified as it can gain 8.7 kB, which is 11% 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 62.2 kB or 81% of the original size.

Image Optimization

-4%

Potential reduce by 238.4 kB

  • Original 6.6 MB
  • After minification 6.4 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. Prologshop images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 5.2 kB

  • Original 52.8 kB
  • After minification 52.8 kB
  • After compression 47.7 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

-25%

Potential reduce by 438 B

  • Original 1.7 kB
  • After minification 1.7 kB
  • After compression 1.3 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. Prologshop.cz needs all CSS files to be minified and compressed as it can save up to 438 B or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (26%)

Requests Now

76

After Optimization

56

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Prologshop. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

prologshop.cz

prologshop.cz

1264 ms

style

style

132 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

192 ms

modernizr-1.5.min.js

modernizr-1.5.min.js

194 ms

jquery-1.4.2.min.js

jquery-1.4.2.min.js

289 ms

front

front

253 ms

cs

cs

254 ms

jquery.mousewheel-3.0.4.pack.js

jquery.mousewheel-3.0.4.pack.js

252 ms

jquery.fancybox-1.3.4.js

jquery.fancybox-1.3.4.js

297 ms

plugins.js

plugins.js

297 ms

util.js

util.js

317 ms

front.js

front.js

330 ms

ajaxbasket.js

ajaxbasket.js

344 ms

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3 ms

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102 ms

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Accessibility Review

prologshop.cz accessibility score

86

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.

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

prologshop.cz best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

prologshop.cz SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Prologshop.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Prologshop.cz 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

prologshop.cz

Open Graph description is not detected on the main page of Prologshop. 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: