Tools & Wizards About Us
lernen.de screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

lernen.de

Digitale Bildung erfolgreich umsetzen I CANCOM Education

Page Load Speed

17.6 sec in total

First Response

269 ms

Resources Loaded

14.6 sec

Page Rendered

2.7 sec

lernen.de screenshot

About Website

Click here to check amazing Lernen content. Otherwise, check out these important facts you probably never knew about lernen.de

Mit CANCOM Education setzen wir neue Standards in Bildungsbereich. Wir bieten alle Lösungen und Kompetenzen für den Unterricht von morgen.

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Key Findings

We analyzed Lernen.de page load time and found that the first response time was 269 ms and then it took 17.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

lernen.de performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value6,700 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.024

100/100

15%

TTI (Time to Interactive)

Value22.3 s

1/100

10%

Network Requests Diagram

lernen.de

269 ms

6021 ms

style.css

215 ms

style.min.css

309 ms

style.min.css

309 ms

Our browser made a total of 84 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Lernen.de, 96% (81 requests) were made to Cancom.de and 1% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (6 sec) relates to the external source Cancom.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (74%)

Content Size

1.4 MB

After Optimization

359.9 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Lernen.de main page is 1.4 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. 70% of websites need less resources to load. HTML takes 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 983.5 kB

  • Original 1.1 MB
  • After minification 1.0 MB
  • After compression 83.4 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 983.5 kB or 92% of the original size.

Image Optimization

-15%

Potential reduce by 49.8 kB

  • Original 325.7 kB
  • After minification 275.9 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. Obviously, Lernen needs image optimization as it can save up to 49.8 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-8%

Potential reduce by 51 B

  • Original 601 B
  • After minification 601 B
  • After compression 550 B

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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 29 (40%)

Requests Now

72

After Optimization

43

  • Images
  • JavaScript
  • CSS

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lernen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lernen.de

lernen.de

269 ms

6021 ms

style.css

style.css

215 ms

style.min.css

style.min.css

309 ms

style.min.css

style.min.css

309 ms

style.css

style.css

308 ms

borlabs-cookie_2_de.css

borlabs-cookie_2_de.css

440 ms

js_composer.min.css

js_composer.min.css

656 ms

style.css

style.css

298 ms

navigation.css

navigation.css

361 ms

jquery.min.js

jquery.min.js

538 ms

jquery-migrate.min.js

jquery-migrate.min.js

359 ms

maps.js

maps.js

403 ms

xdomain-data.js

xdomain-data.js

464 ms

api.js

api.js

59 ms

animate.min.css

animate.min.css

482 ms

hamburgers.css

hamburgers.css

528 ms

encoder-form.js

encoder-form.js

465 ms

compatibility.js

compatibility.js

477 ms

default.js

default.js

565 ms

conditions.js

conditions.js

565 ms

multistep.js

multistep.js

576 ms

forms_frontend.js

forms_frontend.js

575 ms

autosearch.js

autosearch.js

2277 ms

navigation.js

navigation.js

2277 ms

js_composer_front.min.js

js_composer_front.min.js

2277 ms

vc-waypoints.min.js

vc-waypoints.min.js

2280 ms

popups.js

popups.js

2280 ms

default.js

default.js

2281 ms

borlabs-cookie.min.js

borlabs-cookie.min.js

2280 ms

CANCOM_Logo_Rot_sRGB.svg

CANCOM_Logo_Rot_sRGB.svg

960 ms

b_education_konzept_schule-300x169.jpg

b_education_konzept_schule-300x169.jpg

961 ms

b_education_konzept_zuhause-300x169.jpg

b_education_konzept_zuhause-300x169.jpg

958 ms

themenwelt_edu-300x190.jpg

themenwelt_edu-300x190.jpg

954 ms

mockup_education-1-219x300.png

mockup_education-1-219x300.png

960 ms

bg_edu-2.svg

bg_edu-2.svg

954 ms

BfB_Logo_Blau_edited-300x168.png

BfB_Logo_Blau_edited-300x168.png

928 ms

bdb_logo-300x163.png

bdb_logo-300x163.png

929 ms

logo_acer.svg

logo_acer.svg

937 ms

logo_adobe_platinumreseller.svg

logo_adobe_platinumreseller.svg

928 ms

18163163-A_AMDPartnerProgram_Elite_Badge_RGB2.png

18163163-A_AMDPartnerProgram_Elite_Badge_RGB2.png

935 ms

logo_apple_enterprise_reseller_education.svg

logo_apple_enterprise_reseller_education.svg

933 ms

151211_partner_aruba.svg

151211_partner_aruba.svg

945 ms

google_chromeOS.svg

google_chromeOS.svg

937 ms

logo_cisco_partner-1.svg

logo_cisco_partner-1.svg

940 ms

logo_corel.png

logo_corel.png

946 ms

logo_dell_titanum.svg

logo_dell_titanum.svg

946 ms

logo_epson.svg

logo_epson.svg

948 ms

logo_hpe-1.svg

logo_hpe-1.svg

958 ms

logo_jamf.svg

logo_jamf.svg

956 ms

logo_lenovo.svg

logo_lenovo.svg

959 ms

logo_logitech.svg

logo_logitech.svg

962 ms

logo_microsoft_partner.svg

logo_microsoft_partner.svg

986 ms

logo_samsung_powerpartner.png

logo_samsung_powerpartner.png

963 ms

logo_trend_micro-1.svg

logo_trend_micro-1.svg

982 ms

i_kontakt.svg

i_kontakt.svg

964 ms

icon_xing.svg

icon_xing.svg

984 ms

icon_fb.svg

icon_fb.svg

994 ms

icon_instagram.svg

icon_instagram.svg

141 ms

icon_linkedin.svg

icon_linkedin.svg

143 ms

icon_twitter.svg

icon_twitter.svg

141 ms

icon_youtube.svg

icon_youtube.svg

141 ms

recaptcha__en.js

recaptcha__en.js

177 ms

b_education_header-300x200.jpg

b_education_header-300x200.jpg

191 ms

b_education_netzwerk-300x169.jpg

b_education_netzwerk-300x169.jpg

725 ms

b_education_ger%C3%A4teverwaltung-300x169.jpg

b_education_ger%C3%A4teverwaltung-300x169.jpg

724 ms

b_education_plattform-1-300x169.jpg

b_education_plattform-1-300x169.jpg

721 ms

b_device-300x169.jpg

b_device-300x169.jpg

719 ms

b_education_distanz-300x169.jpg

b_education_distanz-300x169.jpg

723 ms

bild_security-300x169.jpg

bild_security-300x169.jpg

724 ms

b_education_medientechnik-300x169.jpg

b_education_medientechnik-300x169.jpg

725 ms

b_education_kita-300x169.jpg

b_education_kita-300x169.jpg

725 ms

b_education_schule-300x169.jpg

b_education_schule-300x169.jpg

724 ms

gotham.css

gotham.css

109 ms

elegant_icons.css

elegant_icons.css

861 ms

Gotham-Book_Web.woff

Gotham-Book_Web.woff

756 ms

Gotham-Medium_Web.woff

Gotham-Medium_Web.woff

752 ms

Gotham-Light_Web.woff

Gotham-Light_Web.woff

753 ms

Gotham-XLight_Web.woff

Gotham-XLight_Web.woff

756 ms

Gotham-Thin_Web.woff

Gotham-Thin_Web.woff

753 ms

Gotham-Bold_Web.woff

Gotham-Bold_Web.woff

754 ms

Gotham-Black_Web.woff

Gotham-Black_Web.woff

804 ms

Gotham-Ultra_Web.woff

Gotham-Ultra_Web.woff

752 ms

ElegantIcons.ttf

ElegantIcons.ttf

318 ms

Accessibility Review

lernen.de accessibility score

78

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

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

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

Image elements do not have [alt] attributes

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

[lang] attributes do not have a valid value

Best Practices

lernen.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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

lernen.de SEO score

78

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Document doesn't have a valid hreflang

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 Lernen.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 Lernen.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

lernen.de

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