Report Summary

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    Best Practices

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ZSE Electronic GmbH – Dehnungsmessstreifen, Messtechnik, Messdatenerfassung

Page Load Speed

5 sec in total

First Response

289 ms

Resources Loaded

4.3 sec

Page Rendered

390 ms screenshot

About Website

Visit now to see the best up-to-date ZSE content and also check out these interesting facts you probably never knew about

Seit 1981 bietet ZSE eine umfangreiche Produktpalette im Bereich Dehnungsmessstreifen, Messtechnik, Messdatenerfassung und Sensorik an.


Key Findings

We analyzed page load time and found that the first response time was 289 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics performance score


Network Requests Diagram

289 ms

934 ms

450 ms


26 ms


901 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 94% of them (48 requests) were addressed to the original, 4% (2 requests) were made to and 2% (1 request) were made to The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain

Page Optimization Overview & Recommendations

Page size can be reduced by 995.4 kB (30%)

Content Size

3.3 MB

After Optimization

2.3 MB

In fact, the total size of main page is 3.3 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. 70% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 343.3 kB

  • Original 387.8 kB
  • After minification 349.9 kB
  • After compression 44.6 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 343.3 kB or 89% of the original size.

Image Optimization


Potential reduce by 652.1 kB

  • Original 2.9 MB
  • After minification 2.2 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. Obviously, ZSE needs image optimization as it can save up to 652.1 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization


Potential reduce by 31 B

  • Original 86.2 kB
  • After minification 86.2 kB
  • After compression 86.1 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. has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now


After Optimization


The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZSE. According to our analytics all requests are already optimized.

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 German 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 ZSE. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: