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museenkoeln.de

https://museenkoeln.de· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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museenkoeln.de
Desktop screenshot of museenkoeln.de
Mobile screenshot of museenkoeln.de
Mobile

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Hosting Provider

maxcluster GmbH

IP Address

194.6.211.163

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Paderborn, Germany

ASN

AS47447

Organization

maxcluster GmbH

Server

Apache

Nameservers

ns1093.ui-dns.org.ns1093.ui-dns.de.ns1093.ui-dns.biz.ns1093.ui-dns.com.

Performance

91

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.2 MB
50 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

Analytics

2
Google Analytics
Matomo

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Apache

SEO Analysis

C67/100
19
7
1
Meta Tags7/15
Content11/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social2/5
Freshness0/4
Mobile4/4
Indexability3/3
M
museenkoeln.demuseenkoeln.de

museen.koeln | Museen der Stadt Köln

No description available for this page.

Title Length36 chars

Recommended: 50-60 chars (~220px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

13 rules

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.

Sponsored

AI & LLM Readiness

D40/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
9/25

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:4%
Words:928
Token eff.:Optimal
Sections/1K:1.1
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary238w
Descriptive Headingsavg 2.2w
Canonical URL
Open Graph0/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
A+
91/100
15
Passed
1
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
11/15
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.
49/100
F
437 mg
CO₂e / view
4.2 MB
Page Weight
15%
Cleaner Than
New Visitor
499 mg
vs
Returning (cached)
250 mg
Annual (10K/mo)
52.4 kg
Emission Segments
Data Center
21 mg
Network
128 mg
Device
287 mg
Resource Breakdown
JavaScript
179.4 KB
Images
3.9 MB
CSS
117.6 KB
HTML
17.6 KB
Other
3.2 KB
Green Hosting Verified
23M GmbH
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

73d

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/2

Valid From

13.04.2026

Valid Until

12.07.2026

Subject Alternative Names (13)

artothek.komusite.c-2045.maxcluster.netfilmforum.komusite.c-2045.maxcluster.netkmb.komusite.c-2045.maxcluster.netkomusite.c-2045.maxcluster.netmakk.komusite.c-2045.maxcluster.netmuseum-schnuetgen.densdok.komusite.c-2045.maxcluster.netrgm.komusite.c-2045.maxcluster.net+5 more

SHA-256 Fingerprint

AF:B4:27:AD:CE:6C:F9:BB:DC:B7:7F:0F:85:4E:6E:95:05:D1:3A:04...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(private, no-store, max-age=0)
content-encoding
⚡ Brotli(br)
content-language
de-DE
content-length
17696
content-type
text/html; charset=utf-8
date
Thu, 30 Apr 2026 04:52:28 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

mx00.kundenserver.de
mx01.kundenserver.de

Domain Information

museenkoeln.de

Last Updated

25.07.2018

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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
68/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans + verdana

WCAG Partial
73/100
Readability
/30
26/30

18px · LH 1.50

Hierarchy
/20
14/20

1.94x ratio · ✓ H1→H6

WCAG
/25
13/25

3:1 min contrast

Performance
/25
20/25

2 fonts · 2 req

Heading Font

Open Sans

Sans35px

Body Font

verdana

Sans18px

Contrast Ratio

3:1

4 issues

Reading Comfort

~44 CPL

Narrow lines
35px
h1
45px
h2
32px
h3
18px
p
Minor Second
Scale

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

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

❌ Very complex text: Flesch score 22/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 3.0:1).

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

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

Buy on MyFontsFlesch 22

Color Palette

7 unique colors
8.79:1 AAA Light
#ffffff
Background· 68.7%
#424d49
Text· 6.8%
#286ab7
Primary· 0%
#932733
Accent· 7.5%
#1e1c17
Secondary· 5.5%
#855f5b
Secondary· 3.7%

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

6 Resources

4
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

local(3)static.conword.io(1)

Website Identity

museenkoeln.de

Location detected: 🇩🇪 Germanyvia tld
de

Social Profiles

FacebookInstagram

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Last analyzed: 30 Apr 2026 at 04:52

Historical Analysis & Change Tracking