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amadeu-antonio-stiftung.de

https://amadeu-antonio-stiftung.de· First analyzed 29 Apr 2026· Updated 29 Apr 2026
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amadeu-antonio-stiftung.de
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Mobile

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Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

107.178.251.200

Site Location

🇩🇪 Germanyvia tld

Server Location

🇺🇸 Kansas City, United States

ASN

AS396982

Organization

Google Cloud

Server

Nginx

CDN

Varnish

Nameservers

ns01.agenturserver.it.ns01.agenturserver.co.ns01.agenturserver.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
527 ms10%
Speed Index
685 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
16.8 MB
96 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
WordPressv6.9.4
Infrastructure
Hosting
Google Cloud Platform
CDN
Varnish

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

17 Technologies Detected

Plugins

9
Acb Adapt Gravitybot
Contact Form 7
Ph Gallery
WPML
Borlabs Cookie
Contact Form 7 Honeypot
Aas Donation
Yoast SEO
WPML

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

CDN

1
Cloudflare

Security

1
reCAPTCHA

SEO Analysis

B78/100
24
6
2
Meta Tags7/15
Content10/12
Headings6/8
Technical25/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
A
amadeu-antonio-stiftung.deamadeu-antonio-stiftung.de

Startseite - Amadeu Antonio Stiftung

No description available for this page.

Title Length36 chars

Recommended: 50-60 chars (~219px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (23/42) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

20 URLs

20 sub-sitemaps

robots.txt

3 rules

Local SEO

Local Search Readiness

22/100
Needs Work
6 12

Sponsored

AI & LLM Readiness

C60/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
8/25
Citation
19/25

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:6%
Words:1,920
Token eff.:Optimal
Sections/1K:9.9
Depth:1/5

Structured Data

5 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary105w
Descriptive Headingsavg 5.6w
Canonical URL
Open Graph2/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (6)
AI readiness recommendation preview...
Upgrade to view recommendations

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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
70/100
13
Passed
2
Critical
3
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
2/15
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
12/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
43/100
F
1.74 g
CO₂e / view
16.8 MB
Page Weight
5%
Cleaner Than
New Visitor
1.99 g
vs
Returning (cached)
994 mg
Annual (10K/mo)
208.6 kg
Emission Segments
Data Center
85 mg
Network
511 mg
Device
1.14 g
Resource Breakdown
JavaScript
171.8 KB
Images
16.4 MB
CSS
171.5 KB
HTML
94.7 KB
Other
2.8 KB
Green Hosting Verified
Google Cloud
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

79d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

19.04.2026

Valid Until

18.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.amadeu-antonio-stiftung.de

SHA-256 Fingerprint

D2:90:F5:2B:8A:26:85:00:BE:06:7E:18:1F:A3:5F:9C:21:87:D7:90...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
age
29728
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
cache-control
🟡 900s(public,max-age=900)
content-encoding
📦 Gzip(gzip)
content-length
96719
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

mx2.agenturserver.de
mx1.agenturserver.de
mx4.agenturserver.de
mx3.agenturserver.de

Domain Information

amadeu-antonio-stiftung.de

Last Updated

05.03.2020

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
74/100
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

Roboto Slab + Roboto

WCAG Partial
73/100
Readability
/30
18/30

16px · LH 1.63

Hierarchy
/20
18/20

3.12x ratio

WCAG
/25
18/25

3.01:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Roboto Slab

Sans50px

Body Font

Roboto

Sans16px

Contrast Ratio

3.01:1

16 issues

Reading Comfort

~41 CPL

Narrow lines
50px
h1
30px
h2
20px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

❌ Very complex text: Flesch score 17/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 3.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.1x larger than body text.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Buy on MyFontsFluid Type (rem)Flesch 17

Color Palette

5 unique colors
12.63:1 AAA Dark
#333333
Text· 31.3%
#ffffff
Primary· 25.1%
#132108
Accent· 25.7%
#305ec1
Accent· 9.1%
#dfe2e5
Border· 8.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
0
Async
0
Defer

Top Script Sources

amadeu-antonio-stiftung.de(19)challenges.cloudflare.com(1)

Website Identity

Amadeu Antonio Stiftung

Amadeu Antonio Stiftung

Organization
www.amadeu-antonio-stiftung.de/
Location detected: 🇩🇪 Germanyvia tld
de-DE

Sponsored

Last analyzed: 29 Apr 2026 at 20:32

Historical Analysis & Change Tracking