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Report Summary

About Website

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name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value630 ms

47/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.1 s

87/100

10%

www4.schule-fuer-selbstverteidigung.de

194 ms

bSBJDPQad.js

2 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Schule-fuer-selbstverteidigung.de and no external sources were called. The less responsive or slowest element that took the longest time to load (194 ms) relates to the external source Www4.schule-fuer-selbstverteidigung.de.

Content Size

13.2 kB

After Optimization

12.1 kB

In fact, the total size of Schule-fuer-selbstverteidigung.de main page is 13.2 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 5% of websites need less resources to load. Images take 11.4 kB which makes up the majority of the site volume.

HTML Optimization

-30%

Potential reduce by 328 B

Original 1.1 kB
After minification 1.1 kB
After compression 779 B

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 328 B or 30% of the original size.

Image Optimization

-2%

Potential reduce by 239 B

Original 11.4 kB
After minification 11.1 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. Schule Fuer Selbstverteidigung images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 563 B

Original 761 B
After minification 249 B
After compression 198 B

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 563 B or 74% of the original size.

Requests Now

After Optimization

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Schule Fuer Selbstverteidigung. According to our analytics all requests are already optimized.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

<frame> or <iframe> elements do not have a title

Language and Encoding

Language Detected

Language Claimed

Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Schule-fuer-selbstverteidigung.de 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 Schule-fuer-selbstverteidigung.de 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

schule-fuer-selbstverteidigung.de

Open Graph description is not detected on the main page of Schule Fuer Selbstverteidigung. 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: