Access lernwerk.de. Lernwerk Nachhilfe Berlin & Potsdam an 11 Standorten!

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value15.3 s

1/100

10%

TBT (Total Blocking Time)

Value960 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.023

100/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

lernwerk.de

298 ms

www.lernwerk.de

677 ms

stylesheet_cdf56a60c7.css

196 ms

bootstrap.min.css

483 ms

bootstrap-theme.min.css

912 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 74% of them (68 requests) were addressed to the original Lernwerk.de, 9% (8 requests) were made to Apis.google.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Lernwerk.de.

Content Size

1.6 MB

After Optimization

1.1 MB

In fact, the total size of Lernwerk.de main page is 1.6 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. Images take 964.5 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 62.1 kB

Original 80.7 kB
After minification 78.8 kB
After compression 18.6 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 62.1 kB or 77% of the original size.

Image Optimization

-9%

Potential reduce by 83.3 kB

Original 964.5 kB
After minification 881.2 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. Lernwerk images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 206.5 kB

Original 326.8 kB
After minification 312.6 kB
After compression 120.3 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 206.5 kB or 63% of the original size.

CSS Optimization

-84%

Potential reduce by 167.4 kB

Original 199.1 kB
After minification 186.6 kB
After compression 31.6 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. Lernwerk.de needs all CSS files to be minified and compressed as it can save up to 167.4 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lernwerk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

High

button, link, and menuitem elements do not have accessible names.

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

These are opportunities to improve the legibility of your content.

High

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

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

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 Lernwerk.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 Lernwerk.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

lernwerk.de

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Lernwerk Nachhilfe Berlin & Potsdam an 11 Standorten!

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

lernwerk.de

www.lernwerk.de

stylesheet_cdf56a60c7.css

bootstrap.min.css

bootstrap-theme.min.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

lernwerk.de

www.lernwerk.de

stylesheet_cdf56a60c7.css

bootstrap.min.css

bootstrap-theme.min.css

fancybox.css

style.css

jquery.min.js

jquery-migrate.min.js

jquery-ui.min.js

bootstrap.min.js

fancybox.js

lernwerkv2.js

javascript_93077bb238.js

conversion.js

ea6c9b06e7.gif

377297cd04.gif

74926201df.gif

1726dbf53a.gif

69248e8f53.gif

b8a1746c63.gif

9b3cb1e12a.gif

729cc04939.gif

f5956544da.gif

1c38cee4e5.gif

a41f251321.gif

26b61ae491.gif

login_anmelden.png

login_formular.png

spacer.gif

login_abmelden.png

blog.png

facebook.png

googleplus.png

twitter.png

lernwerk_logo.png

head_phone.png

startseite-89.gif

startseite-a5.gif

wissen-wie-der-hase-laeuft-jetzt-osterferienkurse-buchen-Ko.jpg

abinauten-der-abiturvorbereitungskurs-zum-durchstarten-Ab.png

kopfbild-msa-kurse-buchen-Ko.jpg

lernwerk-themenkurse-Ko0.jpg