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cdkn.org

https://cdkn.org· First analyzed 15 May 2026· Updated 15 May 2026
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cdkn.org
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Hosting Provider

Hetzner
hetzner.com

IP Address

94.130.145.107

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

freistil IT Ltd

Server

Nginx

CDN

Varnish

Nameservers

ns2.lexsynergy.us.ns3.lexsynergy.info.ns1.lexsynergy.net.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.3 MB
47 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
Drupal
Infrastructure
Hosting
Hetzner
CDN
Varnish

Technology Stack

10 Technologies Detected

Libraries

2
jQuery
jQuery UI

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Social

1
ShareThis

Web Servers

1
Nginx

SEO Analysis

D59/100
17
6
3
Meta Tags9/15
Content11/12
Headings3/8
Technical17/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
cdkn.orgcdkn.org

Home | Climate & Development Knowledge Network

No description available for this page.

Title Length46 chars

Recommended: 50-60 chars (~288px / 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 (9/16) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

53 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.

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AI & LLM Readiness

D41/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
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:5%
Words:1,241
Token eff.:Optimal
Sections/1K:0.8
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary217w
Descriptive Headingsavg 4.5w
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...
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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
79/100
12
Passed
2
Critical
1
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
12/15
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
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
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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.
64/100
B
137 mg
CO₂e / view
1.3 MB
Page Weight
70%
Cleaner Than
New Visitor
157 mg
vs
Returning (cached)
78 mg
Annual (10K/mo)
16.5 kg
Emission Segments
Data Center
7 mg
Network
40 mg
Device
90 mg
Resource Breakdown
JavaScript
68.2 KB
Images
858.5 KB
CSS
383.4 KB
HTML
46.2 KB
Other
814 B
Green Hosting Verified
Hetzner Online GmbH
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

41%Poor
Interactive

HTTPS

No WAF

70d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.04.2026

Valid Until

25.07.2026

Subject Alternative Names (10)

cdkn.co.ukcdkn.infocdkn.netcdkn.orgs2905.c201.freistilbox.nettest.cdkn.orgwww.cdkn.co.ukwww.cdkn.info+2 more

SHA-256 Fingerprint

8A:14:39:F5:11:F6:6B:AF:B9:C8:FA:9C:ED:4A:30:CD:AD:95:AB:79...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
age
0
cache-control
🔴 No Cache(must-revalidate, no-cache, private)
content-encoding
📦 Gzip(gzip)
content-language
en
content-length
47039
Good Warning Issue

Email Infrastructure

Google Workspace

Score

45

SPF
DKIM
DMARC

MX Records (5)

aspmx2.googlemail.com
alt2.aspmx.l.google.com
aspmx4.googlemail.com
alt1.aspmx.l.google.com

+1 more

Domain Information

cdkn.org

Domain Age
15y 9m

Created

20.08.2010

Expires

20.08.2026

Last Updated

30.07.2025

Registrar

Lexsynergy Limited

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial
64/100
Readability
/30
23/30

20px · LH 1.50

Hierarchy
/20
8/20
WCAG
/25
14/25

1.51:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans20px

Contrast Ratio

1.51:1

10 issues

Reading Comfort

~32 CPL

Narrow lines
18px
h2
24px
h3
20px
p
Perfect Fourth
Scale

✅ Excellent readability: 20px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 16/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.5:1).

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

AAdobe FontsFlesch 16

Color Palette

8 unique colors
Light
#ffffff
Text· 29.8%
#feb018
Primary· 24.4%
#f9931c
Accent· 19.7%
#563720
Secondary· 10.5%
#a06d39
Secondary· 8.3%
#efd298
Accent· 3.7%
#c89346
Accent· 3.4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Social Media

1
ShareThisFree

Social widgets and sharing tools

2

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

21 Resources

17
Scripts
4
Styles
1
Async
0
Defer

Top Script Sources

local(13)googletagmanager.com(1)platform-api.sharethis.com(1)cdn.jsdelivr.net(1)cdnjs.cloudflare.com(1)

Website Identity

cdkn.org

15 years old
Location detected: 🇩🇪 Germanyvia ip
Lexsynergy Limited📧 Google Workspaceen

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Last analyzed: 15 May 2026 at 20:10

Historical Analysis & Change Tracking