Report Summary

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    Best Practices

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Internetový obchod a pokladní systém zdarma! Pronájem u

Page Load Speed

5.8 sec in total

First Response

312 ms

Resources Loaded

5.3 sec

Page Rendered

239 ms screenshot

About Website

Welcome to homepage info - get ready to check Metalkas best content right away, or after learning these important things about

Tisíce e-shopů a pokladních systémů běží na Shoptetu. Využijte možnost získat vlastní obchod zdarma - založte si obchod od Shoptetu!


Key Findings

We analyzed page load time and found that the first response time was 312 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics performance score


Network Requests Diagram

312 ms

279 ms


189 ms


835 ms


758 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original, 46% (23 requests) were made to and 14% (7 requests) were made to The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source

Page Optimization Overview & Recommendations

Page size can be reduced by 224.5 kB (41%)

Content Size

542.0 kB

After Optimization

317.5 kB

In fact, the total size of main page is 542.0 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. 65% of websites need less resources to load. HTML takes 232.9 kB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 195.9 kB

  • Original 232.9 kB
  • After minification 225.8 kB
  • After compression 37.1 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. 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 195.9 kB or 84% of the original size.

Image Optimization


Potential reduce by 25 B

  • Original 106.9 kB
  • After minification 106.9 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. Metalkas images are well optimized though.

JavaScript Optimization


Potential reduce by 18.0 kB

  • Original 155.3 kB
  • After minification 155.3 kB
  • After compression 137.3 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 18.0 kB or 12% of the original size.

CSS Optimization


Potential reduce by 10.7 kB

  • Original 46.9 kB
  • After minification 46.9 kB
  • After compression 36.2 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 10.7 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (72%)

Requests Now


After Optimization


The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Metalkas. 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 7 to 1 for CSS and as a result speed up the page load time.

SEO Factors SEO score


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