Report Summary

  • 45


    Renders faster than
    65% of other websites

  • 93


    Visual factors better than
    that of 82% of websites

  • 0

    Best Practices

  • 99


    Google-friendlier than
    94% of websites

KVALITNÍ MODULY pro PrestaShop, tvorba vašeho e-shopu na míru v systému PRESTASHOP - Presta Modul

Page Load Speed

9.5 sec in total

First Response

2.8 sec

Resources Loaded

6.4 sec

Page Rendered

300 ms screenshot

About Website

Visit now to see the best up-to-date Presta Modul Shop Mk content for Czech Republic and also check out these interesting facts you probably never knew about

Vyvíjíme pro Vás moduly usnadňující práci ve vašem e-shopu založeném na oblíbeném open source PrestaShop. Pokud uvažujete o vlastním e-shopu a netroufáte si na jeho rozjezd (instalaci), obraťte se na ...


Key Findings

We analyzed page load time and found that the first response time was 2.8 sec 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 performance score


Measured Metrics





FCP (First Contentful Paint)

Value16.3 s



LCP (Largest Contentful Paint)

Value27.5 s



SI (Speed Index)

Value18.7 s



TBT (Total Blocking Time)

Value30 ms



CLS (Cumulative Layout Shift)




TTI (Time to Interactive)

Value27.3 s



Network Requests Diagram

2780 ms


647 ms


434 ms


341 ms


367 ms

Our browser made a total of 119 requests to load all elements on the main page. We found that 92% of them (109 requests) were addressed to the original, 2% (2 requests) were made to and 2% (2 requests) were made to The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain

Page Optimization Overview & Recommendations

Page size can be reduced by 592.7 kB (33%)

Content Size

1.8 MB

After Optimization

1.2 MB

In fact, the total size of main page is 1.8 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. 65% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 149.7 kB

  • Original 175.9 kB
  • After minification 127.7 kB
  • After compression 26.1 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 48.2 kB, which is 27% 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 149.7 kB or 85% of the original size.

Image Optimization


Potential reduce by 32.5 kB

  • Original 1.1 MB
  • After minification 1.1 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. Presta Modul Shop Mk images are well optimized though.

JavaScript Optimization


Potential reduce by 245.7 kB

  • Original 338.9 kB
  • After minification 259.1 kB
  • After compression 93.2 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 245.7 kB or 73% of the original size.

CSS Optimization


Potential reduce by 164.8 kB

  • Original 197.4 kB
  • After minification 149.3 kB
  • After compression 32.6 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. needs all CSS files to be minified and compressed as it can save up to 164.8 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 40 (35%)

Requests Now


After Optimization


The browser has sent 114 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Presta Modul Shop Mk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.

Accessibility Review accessibility score


Accessibility Issues


These are opportunities to improve the legibility of your content.




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.




Links do not have a discernible name

SEO Factors SEO score


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](




Document uses legible font sizes


Tap targets are not sized appropriately

Language and Encoding

  • Language Detected


  • Language Claimed


  • Encoding


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