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jah-tz.de screenshot

Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 94

    SEO

    Google-friendlier than
    90% of websites

jah-tz.de

Tobias Zulauf

Page Load Speed

2.9 sec in total

First Response

371 ms

Resources Loaded

2.4 sec

Page Rendered

116 ms

jah-tz.de screenshot

About Website

Welcome to jah-tz.de homepage info - get ready to check Jah Tz best content for Germany right away, or after learning these important things about jah-tz.de

Mein Name ist Tobias Zulauf, Fachinformatiker Systemintegration (IHK), beruflich bin ich im SAP BW Umfeld unterwegs.

Visit jah-tz.de

Key Findings

We analyzed Jah-tz.de page load time and found that the first response time was 371 ms and then it took 2.5 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

jah-tz.de performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.07

96/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

jah-tz.de

371 ms

www.jah-tz.de

785 ms

template.min.css

107 ms

bootstrap.min.css

313 ms

bootstrap-responsive.min.css

211 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that all of those requests were addressed to Jah-tz.de and no external sources were called. The less responsive or slowest element that took the longest time to load (833 ms) belongs to the original domain Jah-tz.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 251.8 kB (54%)

Content Size

467.0 kB

After Optimization

215.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jah-tz.de main page is 467.0 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. 20% of websites need less resources to load. Javascripts take 189.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 6.4 kB

  • Original 8.7 kB
  • After minification 7.7 kB
  • After compression 2.4 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 1.0 kB, which is 12% 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 6.4 kB or 73% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 122.5 kB
  • After minification 122.5 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. Jah Tz images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 125.0 kB

  • Original 189.0 kB
  • After minification 188.5 kB
  • After compression 64.0 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 125.0 kB or 66% of the original size.

CSS Optimization

-82%

Potential reduce by 120.4 kB

  • Original 146.7 kB
  • After minification 145.2 kB
  • After compression 26.3 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. Jah-tz.de needs all CSS files to be minified and compressed as it can save up to 120.4 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (77%)

Requests Now

13

After Optimization

3

  • Images
  • JavaScript
  • CSS

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jah Tz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jah-tz.de

jah-tz.de

371 ms

www.jah-tz.de

www.jah-tz.de

785 ms

template.min.css

template.min.css

107 ms

bootstrap.min.css

bootstrap.min.css

313 ms

bootstrap-responsive.min.css

bootstrap-responsive.min.css

211 ms

bootstrap-extended.css

bootstrap-extended.css

328 ms

custom.min.css

custom.min.css

418 ms

jquery.min.js

jquery.min.js

631 ms

jquery-noconflict.js

jquery-noconflict.js

521 ms

jquery-migrate.min.js

jquery-migrate.min.js

625 ms

caption.js

caption.js

730 ms

bootstrap.min.js

bootstrap.min.js

734 ms

template.js

template.js

833 ms

header.jpg

header.jpg

417 ms

piwik.js

piwik.js

211 ms

Accessibility Review

jah-tz.de accessibility score

97

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

jah-tz.de best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jah-tz.de SEO score

94

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

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 Jah-tz.de 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 Jah-tz.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

jah-tz.de

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