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humboldtforum.org

https://humboldtforum.org· First analyzed 07 May 2026· Updated 07 May 2026
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humboldtforum.org
Desktop screenshot of humboldtforum.org
Mobile screenshot of humboldtforum.org
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.68.109

Site Location

🇩🇪 Berlin, Germanyvia schema_nap

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

poppy.ns.cloudflare.com.aarav.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
553 ms10%
Speed Index
719 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6.4 MB
34 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
Humboldtforumv0.0.1Custom
by Henne & Ordnung

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

6 Technologies Detected

Libraries

1
Moment.js

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

CDN

1
Cloudflare

Plugins

1
WP Rocket

SEO Analysis

C68/100
21
6
1
Meta Tags8/15
Content10/12
Headings5/8
Technical22/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
H
humboldtforum.orghumboldtforum.org

Humboldt Forum

Ein neues Stück Berlin – Das Humboldt Forum ist ein Ort für Kultur und Wissenschaft, für Austausch und Debatten.

Title Length14 chars

Recommended: 50-60 chars (~90px / 580px)

Description Length112 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (6/6) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

31 URLs

31 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

44/100
Fair
13 7 1

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AI & LLM Readiness

D43/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
1/25
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:4%
Words:760
Token eff.:Optimal
Depth:1/5

Structured Data

1 JSON-LD
sameAs entity links

Citation Readiness

Opening Summary1090w
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
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Sponsored

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
12
Passed
5
Critical
1
Warnings
Images & Alt Text
8/20
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
45/100
F
666 mg
CO₂e / view
6.4 MB
Page Weight
5%
Cleaner Than
New Visitor
761 mg
vs
Returning (cached)
380 mg
Annual (10K/mo)
79.9 kg
Emission Segments
Data Center
33 mg
Network
196 mg
Device
437 mg
Resource Breakdown
JavaScript
172.5 KB
Images
195.5 KB
CSS
53.3 KB
Fonts
324.8 KB
HTML
67.3 KB
Other
5.6 MB
Green Hosting Verified
Cloudflare
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

41%Poor
Interactive

HTTPS

WAF

31d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.03.2026

Valid Until

08.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

humboldtforum.org*.humboldtforum.org

SHA-256 Fingerprint

0A:46:96:6E:63:94:C5:87:44:20:2F:4E:37:44:33:A3:C2:38:A9:AE...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0)
cf-cache-status
DYNAMIC
cf-ray🇫🇷 Paris
9f7ef40898bcd982-CDG
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Thu, 07 May 2026 08:46:16 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (4)

mx01.hornetsecurity.com
mx03.hornetsecurity.com
mx02.hornetsecurity.com
mx04.hornetsecurity.com

Domain Information

humboldtforum.org

Domain Age
9 years

Created

15.04.2017

Expires

15.04.2027

Last Updated

15.04.2026

Registrar

Key-Systems GmbH

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

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=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

TSTARPRO

WCAG Partial
60/100
Readability
/30
15/30

15px · LH 1.33

Hierarchy
/20
13/20

5.33x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
16/25

1 font · 7 req

Heading Font

TSTARPRO

Sans80px

Body Font

TSTARPRO

Sans15px

Contrast Ratio

1:1

5 issues

Reading Comfort

~37 CPL

Narrow lines
80px
h1
15px
p

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 5.3x larger than body text.

Buy on MyFontsFlesch 29

Color Palette

7 unique colors
12.42:1 AAA Light
#ffffff
Primary· 38.3%
#363430
Other· 12.399999999999999%
#211e17
Secondary· 17.5%
#130e0a
Secondary· 7.6%

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

13 Resources

11
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

local(11)

Website Identity

Humboldt Forum

Humboldt Forum

Museum
+49 30 99 211 89 89
9 years old

Schloßplatz, Berlin

10178, Berlin

DE

Location detected: 🇩🇪 Germany, Berlinvia schema_nap
Key-Systems GmbHde

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Last analyzed: 07 May 2026 at 08:46

Historical Analysis & Change Tracking