Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

lernhelfer.de

Lernhelfer – das Lernportal für alle Schulfächer von der 5. Klasse bis zum Abitur

Page Load Speed

4.5 sec in total

First Response

352 ms

Resources Loaded

3.6 sec

Page Rendered

536 ms

lernhelfer.de screenshot

About Website

Click here to check amazing Lernhelfer content for Germany. Otherwise, check out these important facts you probably never knew about lernhelfer.de

Dein multimediales Lernportal von der 5. Klasse bis zum Abitur. Mit Schülerlexikon, Originalprüfungen, Klausuren und Lernkarten – im Web und als App.

Visit lernhelfer.de

Key Findings

We analyzed Lernhelfer.de page load time and found that the first response time was 352 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

lernhelfer.de performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value3,470 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.266

46/100

15%

TTI (Time to Interactive)

Value18.5 s

3/100

10%

Network Requests Diagram

lernhelfer.de

352 ms

www.lernhelfer.de

1033 ms

gtm.js

161 ms

js__y70HNiafOYPkdgFSWsrQeOZYPUqbo4jkaTwdbof7cDg__bplBzzLt64wRqqNgTBFg6Kct6lC9TAkh02jq8MuZq0k__hNHiU5-VT3zxPvLlm-JzFfbZnJuin9bYbuscv2lNw6M.js

298 ms

MathJax.js

479 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 84% of them (46 requests) were addressed to the original Lernhelfer.de, 4% (2 requests) were made to Facebook.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Lernhelfer.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 665.1 kB (27%)

Content Size

2.4 MB

After Optimization

1.8 MB

In fact, the total size of Lernhelfer.de main page is 2.4 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. 40% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 336.6 kB

  • Original 391.8 kB
  • After minification 381.2 kB
  • After compression 55.2 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 336.6 kB or 86% of the original size.

Image Optimization

-5%

Potential reduce by 85.6 kB

  • Original 1.6 MB
  • After minification 1.6 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. Lernhelfer images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 242.8 kB

  • Original 391.2 kB
  • After minification 391.1 kB
  • After compression 148.3 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 242.8 kB or 62% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (35%)

Requests Now

46

After Optimization

30

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lernhelfer. 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 as a result speed up the page load time.

Accessibility Review

lernhelfer.de accessibility score

84

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

lernhelfer.de best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

lernhelfer.de 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

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 Lernhelfer.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 Lernhelfer.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 Lernhelfer. 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: