Report Summary

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    Best Practices

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Übersicht Fachzeitschriften & wissenschaftliche Zeitschriften | Carl Hanser Verlag

Page Load Speed

2.8 sec in total

First Response

322 ms

Resources Loaded

2.4 sec

Page Rendered

78 ms screenshot

About Website

Click here to check amazing Energiespektrum content for Germany. Otherwise, check out these important facts you probably never knew about

Hanser Fachzeitschriften und wissenschaftliche Zeitschriften decken ein weites Spektrum der industriellen Produktionstechnik ab. Verschaffen Sie sich einen Überblick!


Key Findings

We analyzed page load time and found that the first response time was 322 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics performance score


Network Requests Diagram

322 ms

716 ms


40 ms


53 ms


23 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original, 50% (13 requests) were made to and 27% (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 666.6 kB (69%)

Content Size

966.4 kB

After Optimization

299.8 kB

In fact, the total size of main page is 966.4 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. 15% of websites need less resources to load. Javascripts take 769.7 kB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 157.6 kB

  • Original 196.7 kB
  • After minification 196.7 kB
  • After compression 39.1 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 157.6 kB or 80% of the original size.

JavaScript Optimization


Potential reduce by 509.0 kB

  • Original 769.7 kB
  • After minification 769.7 kB
  • After compression 260.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 509.0 kB or 66% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (47%)

Requests Now


After Optimization


The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Energiespektrum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts 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 German is used on the page, and it does not match the claimed English 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 PARSED_DOMAIN, but there is no image specified in description. It would be a good idea for the website admin to select a nice image that can properly represent the website in Open Graph data, otherwise the first found image will be taken for this purpose and social media information block will look like this: