Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

lehrerlenz.de

Online-Übungen Deutsch von Claus Lenz für jugendliche Zuwanderer und Flüchtlinge

Page Load Speed

3.2 sec in total

First Response

799 ms

Resources Loaded

2.3 sec

Page Rendered

114 ms

lehrerlenz.de screenshot

About Website

Visit lehrerlenz.de now to see the best up-to-date Lehrer Lenz content for Nepal and also check out these interesting facts you probably never knew about lehrerlenz.de

Übungsmaterial für DaF bzw. Deutsch als Zweitsprache/Deutsch als Zielsprache; Schwerpunkte: Grammatik und Wortschatz

Visit lehrerlenz.de

Key Findings

We analyzed Lehrerlenz.de page load time and found that the first response time was 799 ms and then it took 2.4 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

lehrerlenz.de performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

74/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value1,940 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value71.1 s

0/100

10%

Network Requests Diagram

lehrerlenz.de

799 ms

base.css

222 ms

content.css

224 ms

nav.css

223 ms

exe_jquery.js

653 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 31% of them (11 requests) were addressed to the original Lehrerlenz.de, 53% (19 requests) were made to Padlet.net and 6% (2 requests) were made to Padlet.com. The less responsive or slowest element that took the longest time to load (799 ms) belongs to the original domain Lehrerlenz.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 218.5 kB (20%)

Content Size

1.1 MB

After Optimization

882.4 kB

In fact, the total size of Lehrerlenz.de main page is 1.1 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. 55% of websites need less resources to load. Javascripts take 718.8 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 51.4 kB

  • Original 64.7 kB
  • After minification 58.9 kB
  • After compression 13.4 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. 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 51.4 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 10.0 kB

  • Original 216.0 kB
  • After minification 205.9 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. Lehrer Lenz images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 93.8 kB

  • Original 718.8 kB
  • After minification 718.8 kB
  • After compression 625.0 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 93.8 kB or 13% of the original size.

CSS Optimization

-62%

Potential reduce by 63.3 kB

  • Original 101.5 kB
  • After minification 55.7 kB
  • After compression 38.1 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. Lehrerlenz.de needs all CSS files to be minified and compressed as it can save up to 63.3 kB or 62% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (76%)

Requests Now

34

After Optimization

8

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lehrer Lenz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

lehrerlenz.de accessibility score

94

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.

Names and labels

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.

Impact

Issue

High

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

Best Practices

lehrerlenz.de best practices score

75

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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

lehrerlenz.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 Lehrerlenz.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 Lehrerlenz.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 description is not detected on the main page of Lehrer Lenz. 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: