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adenauerhaus.de

https://adenauerhaus.de· First analyzed 04 Jun 2026· Updated 04 Jun 2026
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adenauerhaus.de
Desktop screenshot of adenauerhaus.de
Mobile screenshot of adenauerhaus.de
Mobile

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Hosting Provider

LUMASERV GmbH

IP Address

185.245.60.48

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Koblenz, Germany

ASN

AS200303

Organization

LUMASERV GmbH

Server

Nginx

Nameservers

ns3.second-ns.de.ns.second-ns.com.ns1.your-server.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
517 ms10%
Speed Index
672 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.7 MB
42 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
TYPO3
Infrastructure
Hosting
LUMASERV GmbH

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Nginx

SEO Analysis

C69/100
19
5
1
Meta Tags11/15
Content11/12
Headings8/8
Technical16/21
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
A
adenauerhaus.deadenauerhaus.de

Stiftung Bundeskanzler-Adenauer-Haus

Die Stiftung Bundeskanzler-Adenauer-Haus erinnert an den Politiker, ersten Bundeskanzler und Europäer Konrad Adenauer.

Title Length36 chars

Recommended: 50-60 chars (~218px / 580px)

Description Length119 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (11/18) — critical for accessibility and SEO

6 issues found

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Local SEO

Local Search Readiness

10/100
Poor
3 13 2

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

D44/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
11/25

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
nav
Text ratio:2%
Words:499
Token eff.:Optimal
Sections/1K:2
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary201w
Descriptive Headingsavg 1w
Canonical URL
Open Graph2/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
76/100
11
Passed
1
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
2/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
48/100
D
220 mg
CO₂e / view
1.7 MB
Page Weight
60%
Cleaner Than
New Visitor
252 mg
vs
Returning (cached)
126 mg
Annual (10K/mo)
26.4 kg
Emission Segments
Data Center
49 mg
Network
53 mg
Device
118 mg
Resource Breakdown
JavaScript
106.7 KB
Images
1.2 MB
CSS
378.5 KB
HTML
18.0 KB
Other
6.4 KB
Green Hosting Not Verified
LUMASERV GmbH
3 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

86%Very Good
Interactive

HTTPS

No WAF

35d

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

Valid From

11.04.2026

Valid Until

10.07.2026

Subject Alternative Names (2)

adenauerhaus.dewww.adenauerhaus.de

SHA-256 Fingerprint

D7:7D:86:D4:BF:59:33:1B:9F:F0:CA:16:86:FE:CC:7B:93:C6:A8:50...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 2112s(max-age=2112)
content-encoding
📦 Gzip(gzip)
content-language
de-DE
content-length
18136
content-security-policy
script-src 'self' 'unsafe-inline' blob: https://cdn.svgator....
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

adenauerhaus-de.mail.protection.outlook.com

Domain Information

adenauerhaus.de

Last Updated

10.10.2023

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.
B
72/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Oktah

WCAG Fail
80/100
Readability
/30
25/30

20px · LH 1.60

Hierarchy
/20
20/20

4.5x ratio · ✓ H1→H6

WCAG
/25
15/25

1:1 min contrast

Performance
/25
20/25

1 font · 3 req

Heading Font

Oktah

Sans90px

Body Font

Oktah

Sans20px

Contrast Ratio

1:1

49 issues

Reading Comfort

~35 CPL

Narrow lines
90px
h1
60px
h2
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

❌ Low contrast: 49 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 4.5x larger than body text.

Buy on MyFontsFlesch 0

Color Palette

13 unique colors
6.06:1 AA Light
#969596
Other· 19.3%
#161616
Text· 12.600000000000001%
#ffffff
Primary· 0%
#d91f46
Primary· 6.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

19 Resources

14
Scripts
5
Styles
3
Async
11
Defer

Top Script Sources

local(12)cdn.svgator.com(1)matomo.adenauerhaus.de(1)

Website Identity

adenauerhaus.de

Location detected: 🇩🇪 Germanyvia tld
📧 Microsoft 365de-DE

Social Profiles

FacebookInstagram

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Last analyzed: 04 Jun 2026 at 10:28

Historical Analysis & Change Tracking

adenauerhaus.de Technology Stack - Built With Tailwind CSS, Matomo, Nginx | StackOptic | StackOptic