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wallraf.museum

https://wallraf.museum· First analyzed 21 May 2026· Updated 21 May 2026
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wallraf.museum
Desktop screenshot of wallraf.museum
Mobile screenshot of wallraf.museum
Mobile

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Hosting Provider

IONOS (1&1)
ionos.com

IP Address

217.160.0.154

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Essen, Germany

ASN

AS8560

Organization

Ionos Inf

Server

Apache

Nameservers

ns55.1und1.de.ns56.1und1.de.

Performance

79

Core Web Vitals

Weight

First Contentful Paint
2.4 s10%
Speed Index
3.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
214 KB
23 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Technology Stack

5 Technologies Detected

Libraries

1
jQueryv1.7.2

CSS Frameworks

1
Tailwind CSS

Advertising

1
Google Ads

Web Servers

1
Apache

Languages

1
PHPv5.2.17

SEO Analysis

D43/100
9
12
2
Meta Tags7/15
Content5/12
Headings5/8
Technical7/21
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
W
wallraf.museumwallraf.museum

JETZT: Wallraf-Richartz-Museum

No description available for this page.

Title Length30 chars

Recommended: 50-60 chars (~185px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

14 issues found

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Local SEO

Local Search Readiness

3/100
Poor
1 14 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

F29/100
Bot Access
20/25
Machine Read.
2/25
Schema Data
0/25
Citation
7/25

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:5%
Words:142
Token eff.:Too Short
Sections/1K:56.3

Structured Data

No Schema

Citation Readiness

Opening Summary27w
Descriptive Headingsavg 4.2w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
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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
7
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
9/20
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
10/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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+
22 mg
CO₂e / view
213.7 KB
Page Weight
95%
Cleaner Than
New Visitor
25 mg
vs
Returning (cached)
12 mg
Annual (10K/mo)
2.6 kg
Emission Segments
Data Center
1 mg
Network
6 mg
Device
14 mg
Resource Breakdown
JavaScript
186.1 KB
CSS
22.0 KB
HTML
3.9 KB
Other
1.7 KB
Green Hosting Verified
IONOS SE
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

263d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

25.01.2026

Valid Until

08.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.wallraf.museumwallraf.museum

SHA-256 Fingerprint

C2:80:4C:0B:F1:F2:93:AD:D9:7A:26:97:5F:B9:85:B0:24:92:89:CC...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟣 Private(private)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Thu, 21 May 2026 00:23:20 GMT
server
Apache
x-powered-by
PHP/5.2.17
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

mail1.stadt-koeln.de
mail2.stadt-koeln.de

Domain Information

wallraf.museum

Domain Age
17y 8m

Created

19.09.2008

Expires

19.09.2026

Last Updated

20.11.2025

Registrar

SECURA GMBH

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner
Cookie Notice (WP)
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookie Notice (WP)
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.
F
34/100
Not 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.
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Times New Roman + Arial

WCAG Partial
60/100
Readability
/30
18/30

14px · LH 1.30

Hierarchy
/20
8/20

1.33x ratio

WCAG
/25
14/25

1.67:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Times New Roman

Serif19px

Body Font

Arial

Sans14px

Contrast Ratio

1.67:1

12 issues

Reading Comfort

~45 CPL

Optimal (45–75)
19px
h1
19px
h2
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

✅ Optimal line length: ~45 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 11/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.7:1).

❌ Broken heading hierarchy: 3 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

Buy on MyFontsFlesch 11

Color Palette

5 unique colors
2.55:1 Fail Light
#ffffff
Background· 45.199999999999996%
#a9a0a1
Other· 4.4%
#a1236b
Primary· 5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

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

11 Resources

7
Scripts
4
Styles
0
Async
0
Defer

Top Script Sources

fileadmin(2)typo3conf(2)wallraf.museum(2)typo3temp(1)

Website Identity

wallraf.museum

17 years old
Location detected: 🇩🇪 Germanyvia ip
SECURA GMBHde

Sponsored

Last analyzed: 21 May 2026 at 00:23

Historical Analysis & Change Tracking