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co-berlin.org

https://co-berlin.org· First analyzed 09 May 2026· Updated 09 May 2026
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co-berlin.org
Desktop screenshot of co-berlin.org
Mobile screenshot of co-berlin.org
Mobile

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Hosting Provider

Host Europe GmbH

IP Address

92.205.54.234

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Strasbourg, France

ASN

AS21499

Organization

Host Europe GmbH

Server

Nginx

Nameservers

ns08.domaincontrol.com.ns07.domaincontrol.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
611 ms10%
Speed Index
794 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
10.6 MB
66 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

7 Technologies Detected

Libraries

1
jQuery

Other

1
lazysizes

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

C60/100
18
6
3
Meta Tags4/15
Content11/12
Headings3/8
Technical21/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
co-berlin.orgco-berlin.org

C/O Berlin

No description available for this page.

Title Length10 chars

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

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (24/26) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

52 rules

Local SEO

Local Search Readiness

28/100
Needs Work
8 10

Sponsored

AI & LLM Readiness

D41/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
3/25
Citation
8/25

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
navheader/footer
Text ratio:4%
Words:734
Token eff.:Optimal
Sections/1K:8.2
Depth:2/5

Structured Data

1 JSON-LD
Organization×1.1
sameAs entity links

Citation Readiness

Opening Summary19w
Descriptive Headingsavg 2.9w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
76/100
12
Passed
2
Critical
3
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
5/15
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.
22/100
F
1.35 g
CO₂e / view
10.6 MB
Page Weight
5%
Cleaner Than
New Visitor
1.54 g
vs
Returning (cached)
769 mg
Annual (10K/mo)
161.5 kg
Emission Segments
Data Center
301 mg
Network
323 mg
Device
722 mg
Resource Breakdown
JavaScript
178.4 KB
Images
10.2 MB
CSS
212.8 KB
HTML
16.8 KB
Green Hosting Not Verified
Host Europe GmbH
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

41%Poor
Interactive

HTTPS

No WAF

67d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Starfield Technologies, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.07.2025

Valid Until

16.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

co-berlin.orgwww.co-berlin.org

SHA-256 Fingerprint

C1:CD:60:56:7A:C7:BF:C9:03:55:94:A8:91:17:15:0A:80:36:9B:55...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(must-revalidate, no-cache, private)
content-encoding
📦 Gzip(gzip)
content-language
en
content-type
text/html; charset=UTF-8
date
Sat, 09 May 2026 19:01:06 GMT
expires
Sun, 19 Nov 1978 05:00:00 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mxlb.ispgateway.de

Domain Information

co-berlin.org

Domain Age
13y 3m

Created

31.01.2013

Expires

31.01.2027

Last Updated

04.02.2026

Registrar

Mesh Digital Limited

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
63/100
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

Helvetica LTPro

WCAG Partial
56/100
Readability
/30
18/30

29px · LH 1.25

Hierarchy
/20
8/20
WCAG
/25
17/25

1:1 min contrast

Performance
/25
13/25

1 font · 6 req

Heading Font

Helvetica LTPro

Sans

Body Font

Helvetica LTPro

Sans29px

Contrast Ratio

1:1

7 issues

Reading Comfort

~37 CPL

Narrow lines
52px
h2
29px
p

✅ Excellent readability: 29px body text is ideal for all devices.

⚠️ Tight line spacing (1.25). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 46/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 47

Color Palette

11 unique colors
6.06:1 AA Light
#a8a8a5
Other· 19.2%
#292a26
Other· 13.399999999999999%

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

14 Resources

8
Scripts
6
Styles
1
Async
0
Defer

Top Script Sources

local(6)cdn.jsdelivr.net(1)unpkg.com(1)

Website Identity

C/O Berlin Foundation

C/O Berlin Foundation

Organization
info@co-berlin.org
4930284441662
www.co-berlin.org/
13 years old
Location detected: 🇫🇷 Francevia ip
Mesh Digital Limiteden

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Last analyzed: 09 May 2026 at 19:01

Historical Analysis & Change Tracking