Tools & Wizards About Us
justknow.ch screenshot

Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

justknow.ch

Krav Maga Selbstverteidigung / Wing Chun / Eskrima / Kickboxen

Page Load Speed

3.1 sec in total

First Response

391 ms

Resources Loaded

2.5 sec

Page Rendered

235 ms

justknow.ch screenshot

About Website

Visit justknow.ch now to see the best up-to-date Justknow content for Switzerland and also check out these interesting facts you probably never knew about justknow.ch

Mit Selbstverteidigung, Kampfkunst und Kampfsport zu mentaler Stärke, Selbstvertrauen und Selbstschutz! Krav Maga, Wing Chun, Eskrima, Kickboxen in Luzern, Zug, Zürich!

Visit justknow.ch

Key Findings

We analyzed Justknow.ch page load time and found that the first response time was 391 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

justknow.ch performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

71/100

25%

SI (Speed Index)

Value4.8 s

67/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value7.5 s

48/100

10%

Network Requests Diagram

justknow.ch

391 ms

justknow.ch

398 ms

www.justknow.ch

623 ms

reset.css

103 ms

template.css

200 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 94% of them (17 requests) were addressed to the original Justknow.ch, 6% (1 request) were made to Embed.kampfsport.center. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Justknow.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 18.6 kB (1%)

Content Size

1.4 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Justknow.ch main page is 1.4 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. 20% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 16.1 kB

  • Original 20.7 kB
  • After minification 19.8 kB
  • After compression 4.6 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 16.1 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 952 B

  • Original 1.4 MB
  • After minification 1.4 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. Justknow images are well optimized though.

CSS Optimization

-13%

Potential reduce by 1.6 kB

  • Original 12.0 kB
  • After minification 12.0 kB
  • After compression 10.4 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. Justknow.ch needs all CSS files to be minified and compressed as it can save up to 1.6 kB or 13% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

14

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Justknow. According to our analytics all requests are already optimized.

Network Requests Diagram

justknow.ch

justknow.ch

391 ms

justknow.ch

justknow.ch

398 ms

www.justknow.ch

www.justknow.ch

623 ms

reset.css

reset.css

103 ms

template.css

template.css

200 ms

font-awesome.min.css

font-awesome.min.css

299 ms

drMcJQMTBZweRJS6CXCauP4V.js

drMcJQMTBZweRJS6CXCauP4V.js

473 ms

mobile1.png

mobile1.png

296 ms

mobile2.png

mobile2.png

296 ms

logo-justknow.png

logo-justknow.png

296 ms

kravmaga02.jpg

kravmaga02.jpg

956 ms

wingchun01.jpg

wingchun01.jpg

762 ms

fighttraining01.jpg

fighttraining01.jpg

960 ms

kindertraining.jpg

kindertraining.jpg

1055 ms

kurse.jpg

kurse.jpg

961 ms

privatlektionen.jpg

privatlektionen.jpg

962 ms

banner-bg01.jpg

banner-bg01.jpg

564 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

739 ms

Accessibility Review

justknow.ch accessibility score

95

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Best Practices

justknow.ch best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

justknow.ch SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Justknow.ch 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 Justknow.ch 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

justknow.ch

Open Graph description is not detected on the main page of Justknow. 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: