Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 55% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

lehrerfreund.de

Der Lehrerfreund - Notenschlüsselrechner, Lehrer-Tipps und Unterrichtsmaterial

Page Load Speed

4 sec in total

First Response

280 ms

Resources Loaded

2.6 sec

Page Rendered

1.1 sec

lehrerfreund.de screenshot

About Website

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

Der Lehrerfreund. Das führende Lehrer-Magazin im Web seit 19 Jahren. Mit individuell anpassbaren Notenschlüsselrechner-Tools (auch: Abiturschlüssel, IHK) und mehr als 1.000 Unterrichtsmaterialien (Deu...

Visit lehrerfreund.de

Key Findings

We analyzed Lehrerfreund.de page load time and found that the first response time was 280 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

lehrerfreund.de performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

55/100

25%

SI (Speed Index)

Value4.2 s

78/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value5.3 s

73/100

10%

Network Requests Diagram

lehrerfreund.de

280 ms

www.lehrerfreund.de

1001 ms

bootstrap512.min.css

484 ms

style.min.css

493 ms

wwf2uip.css

122 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 68% of them (25 requests) were addressed to the original Lehrerfreund.de, 16% (6 requests) were made to Use.typekit.net and 3% (1 request) were made to Consent.cookiebot.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Lehrerfreund.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 418.7 kB (51%)

Content Size

822.9 kB

After Optimization

404.2 kB

In fact, the total size of Lehrerfreund.de main page is 822.9 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. 35% of websites need less resources to load. Javascripts take 299.9 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 63.2 kB

  • Original 82.4 kB
  • After minification 81.7 kB
  • After compression 19.2 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 63.2 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 184.7 kB
  • After minification 184.7 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. Lehrerfreund images are well optimized though.

JavaScript Optimization

-46%

Potential reduce by 138.3 kB

  • Original 299.9 kB
  • After minification 289.1 kB
  • After compression 161.6 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 138.3 kB or 46% of the original size.

CSS Optimization

-85%

Potential reduce by 217.2 kB

  • Original 256.0 kB
  • After minification 238.1 kB
  • After compression 38.8 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. Lehrerfreund.de needs all CSS files to be minified and compressed as it can save up to 217.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (33%)

Requests Now

30

After Optimization

20

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lehrerfreund. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

lehrerfreund.de accessibility score

83

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

ARIA IDs are not unique

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

lehrerfreund.de best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

lehrerfreund.de SEO score

100

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

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 Lehrerfreund.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 Lehrerfreund.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

Open Graph data is detected on the main page of Lehrerfreund. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: