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mnu.de

https://mnu.de· First analyzed 13 May 2026· Updated 13 May 2026
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mnu.de
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Mobile

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Hosting Provider

ionos.com

IP Address

217.160.0.179

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Essen, Germany

ASN

AS8560

Organization

Ionos Inf

Server

Apache

Nameservers

ns1059.ui-dns.de.ns1059.ui-dns.com.ns1059.ui-dns.org.ns1059.ui-dns.biz.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
1.0 s10%
Speed Index
1.3 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
27.7 MB
50 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Joomla!

Technology Stack

4 Technologies Detected

Libraries

1

Other

1

CSS Frameworks

1

Web Servers

1

SEO Analysis

C69/100
19
7
2
Meta Tags12/15
Content11/12
Headings3/8
Technical19/25
E-E-A-T5/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
M
mnu.demnu.de

MNU - Verband zur Förderung des MINT-Unterrichts – MNU - Startseite

Der „MNU - Verband zur Förderung des MINT-Unterrichts“ tritt seit 1891 für Qualität und Fortschritt in den mathematischen und naturwissenschaftlichen Schulfäche

Title Length67 chars

Recommended: 50-60 chars (~417px / 580px)

Description Length160 chars

Recommended: 120-160 chars

Issues (2)

  • Missing H1 tag — every page should have exactly one H1
  • Most images missing alt text (14/19) — critical for accessibility and SEO

Crawlability

Sitemap

Type: standard

56 URLs

robots.txt

16 rules

Local SEO

Local Search Readiness

18/100
Poor
5 12

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

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AI & LLM Readiness

D48/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
6/25
Citation
10/25

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
blockquotesdef. listsnavheader/footer
Text ratio:12%
Words:683
Token eff.:Optimal
Sections/1K:8.8
Depth:4/5

Structured Data

3 JSON-LD
Article×1.2(min)microdataOrganization×1.1WebSite

Citation Readiness

Opening Summary28w
Descriptive Headingsavg 2.5w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...

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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
74/100
10
Passed
4
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • Accessibility recommendation preview...

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.
36/100
F
2.87 g
CO₂e / view
27.7 MB
Page Weight
5%
Cleaner Than
New Visitor
3.27 g
vs
Returning (cached)
1.64 g
Annual (10K/mo)
343.9 kg
Emission Segments
Data Center
140 mg
Network
842 mg
Device
1.88 g
Resource Breakdown
JavaScript
105.8 KB
Images
27.5 MB
CSS
78.6 KB
HTML
10.4 KB
Green Hosting Verified
IONOS (1&1)
Provider Match
5 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

39%Critical
Interactive

HTTPS

No WAF

33d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

18.03.2026

Valid Until

16.06.2026

Subject Alternative Names (1)

www.mnu.de

SHA-256 Fingerprint

91:44:17:BF:2A:1D:57:35:51:63:3C:56:6F:53:A7:15:9D:4F:CD:6F...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Wed, 13 May 2026 22:08:35 GMT
expires
Wed, 17 Aug 2005 00:00:00 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx00.ionos.de
mx01.ionos.de

Domain Information

mnu.de

Last Updated

16.08.2018

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
C
60/100
Mobile Friendly1 breakpoint
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,initial-scale=1,maximum-scale=1
2 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

Titillium Web

WCAG Partial
57/100
Readability
/30
18/30

18px · LH 1.30

Hierarchy
/20
7/20
WCAG
/25
17/25

1:1 min contrast

Performance
/25
15/25

1 font · 3 req

Heading Font

Titillium Web

Sans

Body Font

Titillium Web

Sans18px

Contrast Ratio

1:1

9 issues

Reading Comfort

~42 CPL

Narrow lines
36px
h2
18px
h4
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 8/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

Color Palette

15 unique colors
19.74:1 AAA Light
#ffffff
Background· 15.399999999999999%
#0c0a0b
Text· 6.7%
#d54d1d
Primary· 9.5%
#cb4108
Accent· 8.4%
#25282d
Secondary· 7.5%
#99a9ac
Secondary· 6%
#e07127
Accent· 4.8%
#a76a51
Secondary· 4.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

22 Resources

16
Scripts
6
Styles
0
Async
1
Defer

Top Script Sources

local(16)

Website Identity

MNU - Verband zur Förderung des MINT-Unterrichts

Organization

Der „MNU - Verband zur Förderung des MINT-Unterrichts“ tritt seit 1891 für Qualität und Fortschritt in den mathematischen und naturwissenschaftlichen Schulfäche

Location detected: 🇩🇪 Germanyvia tld
de-de

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Last analyzed: 13 May 2026 at 22:08

Historical Analysis & Change Tracking