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lehrerfreund.de

https://lehrerfreund.de· First analyzed 24 May 2026· Updated 24 May 2026
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lehrerfreund.de
Desktop screenshot of lehrerfreund.de
Mobile screenshot of lehrerfreund.de
Mobile

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Hosting Provider

Hetzner
hetzner.com

IP Address

144.76.116.183

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner

Server

Nginx

Nameservers

ns3.inwx.eu.ns.inwx.de.ns2.inwx.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
597 ms10%
Speed Index
776 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
184 KB
32 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

22 Technologies Detected

Advertising

5
Google AdsGoogle AdSenseCriteoTaboolaOutbrain

Payments

3
StripePayPal
Square

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Analytics

2
Google Analytics
Matomo

Frameworks

1
Alpine.js

UI Components

1
Lightbox

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Marketing

1
HubSpot

Social

1
ShareThis

Comments

1
Disqus

Web Servers

1
Nginx

Languages

1
PHPv8.4.21

Plugins

1
Elementor

SEO Analysis

C69/100
20
7
1
Meta Tags7/15
Content10/12
Headings8/8
Technical16/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness2/4
Mobile3/4
Indexability3/3
L
lehrerfreund.delehrerfreund.de

Der Lehrerfreund - Notenschlüsselrechner, Lehrer-Tipps und Unterric...

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

Title truncated. Description truncated.
Title Length78 chars

Recommended: 50-60 chars (~471px / 580px)

Description Length218 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (78 chars, ~471px). Will be truncated in search results.

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

2,279 URLs

robots.txt

20 rules

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F27/100
Bot Access
20/25
Machine Read.
1/25
Schema Data
0/25
Citation
6/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:19%
Words:123,701
Token eff.:Excessive

Structured Data

No Schema

Citation Readiness

Opening Summary277w
Descriptive Headings
Canonical URL
Open Graph2/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
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Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
B
73/100
12
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
70/100
A+
19 mg
CO₂e / view
183.6 KB
Page Weight
95%
Cleaner Than
New Visitor
21 mg
vs
Returning (cached)
11 mg
Annual (10K/mo)
2.2 kg
Emission Segments
Data Center
<0.001 g
Network
6 mg
Device
12 mg
Resource Breakdown
JavaScript
30.5 KB
Images
90.6 KB
CSS
36.3 KB
HTML
26.2 KB
Green Hosting Verified
Hetzner Online GmbH
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

40d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

05.04.2026

Valid Until

04.07.2026

Subject Alternative Names (4)

lehrerfreund.demail.lehrerfreund.dewebmail.lehrerfreund.dewww.lehrerfreund.de

SHA-256 Fingerprint

B6:62:FA:D7:55:3A:BF:72:33:BD:BF:E9:E2:8F:3B:12:6C:2F:14:28...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🟣 Private(private, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-length
26542
content-type
text/html; charset=UTF-8
date
Sun, 24 May 2026 13:26:29 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.lehrerfreund.de

Domain Information

lehrerfreund.de

Last Updated

30.10.2020

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
Data Protection Officer mentioned
Legitimate interest basis mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
B
78/100
Mobile Friendly32 breakpoints
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, maximum-scale=3.0, minimum-scale=1.0, initial-scale=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

proxima-nova

WCAG Partial
61/100
Readability
/30
22/30

19px · LH 1.50

Hierarchy
/20
11/20

2.15x ratio

WCAG
/25
12/25

1:1 min contrast

Performance
/25
16/25

1 font

Heading Font

proxima-nova

Sans40px

Body Font

proxima-nova

Sans19px

Contrast Ratio

1:1

18 issues

Reading Comfort

~39 CPL

Narrow lines
40px
h1
31px
h2
16px
h3
13px
h4
19px
p

✅ Excellent readability: 19px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 18 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

AAdobe FontsBuy on MyFonts

Color Palette

7 unique colors
2.63:1 Fail Light
#dde0df
Other· 9.8%
#828b88
Other· 5.8%
#f0f6f2
Primary· 64.5%
#ef0719
Primary· 8.2%
#cda8aa
Secondary· 7.2%
#6a2d34
Secondary· 4.4%
#9ad4b3
Secondary· 0.1%

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

3
Google Tag ManagerFree
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Google AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

Social Media

1
Twitter/X WidgetsFree

Social widgets and sharing tools

4

Categories

6

Total Tools

1

Enterprise

2

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Ad Networks

Google AdSenseMedia.netEzoicMediavineSovrnPubMaticOpenXIndex Exchange

Sponsored

Scripts & Styles

17 Resources

15
Scripts
2
Styles
8
Async
1
Defer

Top Script Sources

pagead2.googlesyndication.com(4)consent.cookiebot.com(3)statistik.lehrerfreund.de(2)local(2)googletagmanager.com(1)

Website Identity

lehrerfreund.de

Location detected: 🇩🇪 Germanyvia tld
de

Social Profiles

FacebookX (Twitter)

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Last analyzed: 24 May 2026 at 13:27

Historical Analysis & Change Tracking