Report Summary

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    Best Practices

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Jena Sehenswürdigkeiten, Jena Geschichte, Fotos & Ausflüge

Page Load Speed

2.1 sec in total

First Response

308 ms

Resources Loaded

1.5 sec

Page Rendered

269 ms screenshot

About Website

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

Jena Sehenswürdigkeiten: Deutsches Optisches Museum, Planetarium - Jena Geschichte, Ausflugsziele, Ausflüge: Eisenberger Mühltal, Dornburger Schlösser + Fotos


Key Findings

We analyzed page load time and found that the first response time was 308 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics performance score


Network Requests Diagram

308 ms

516 ms


203 ms


795 ms


197 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 93% of them (13 requests) were addressed to the original, 7% (1 request) were made to The less responsive or slowest element that took the longest time to load (795 ms) belongs to the original domain

Page Optimization Overview & Recommendations

Page size can be reduced by 39.6 kB (45%)

Content Size

88.4 kB

After Optimization

48.8 kB

In fact, the total size of main page is 88.4 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. Only 10% of websites need less resources to load. Images take 40.5 kB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 18.5 kB

  • Original 24.5 kB
  • After minification 19.7 kB
  • After compression 6.0 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 4.8 kB, which is 20% 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 18.5 kB or 76% of the original size.

Image Optimization


Potential reduce by 120 B

  • Original 40.5 kB
  • After minification 40.4 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. Entdecke Jena images are well optimized though.

CSS Optimization


Potential reduce by 21.0 kB

  • Original 23.5 kB
  • After minification 13.6 kB
  • After compression 2.5 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 21.0 kB or 90% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now


After Optimization


The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Entdecke Jena. 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 description is not detected on the main page of Entdecke Jena. 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: