koerber-stiftung.de

https://koerber-stiftung.de· First analyzed 29 Apr 2026· Updated 29 Apr 2026

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koerber-stiftung.de

Mobile

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

188.40.218.105

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner Online GmbH

Server

Apache

Nameservers

ns10.domaincontrol.com.ns09.domaincontrol.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

895 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

30.2 MB

32 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

Alpine.js

Infrastructure

Hosting

Hetzner

Technology Stack

5 Technologies Detected

Frameworks

CSS Frameworks

Icon Libraries

Analytics

Web Servers

SEO Analysis

B72/100

Meta Tags7/15

Content10/12

Headings8/8

Technical21/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social5/5

Freshness2/4

Mobile4/4

Indexability3/3

koerber-stiftung.dekoerber-stiftung.de

Körber-Stiftung

Die Körber-Stiftung stellt sich mit ihren operativen Projekten, in ihren Netzwerken und mit Kooperationspartnern aktuellen Herausforderungen in den Handlungs...

Description truncated.

Title Length15 chars

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

Description Length239 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (54/54) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

26,022 URLs

robots.txt

1 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

19/100

Poor

5 12 1

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D48/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

1/25

Citation

15/25

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

blockquotesnavheader/footer

Text ratio:7%

Words:1,415

Token eff.:Optimal

Sections/1K:13.4

Depth:3/5

Structured Data

1 JSON-LD

sameAs entity links

Citation Readiness

Opening Summary10w

Descriptive Headingsavg 3.2w

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.

77/100

Passed

Critical

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

7/15

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

9/15

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.

49/100

3.12 g

CO₂e / view

30.2 MB

Page Weight

Cleaner Than

New Visitor

3.57 g

Returning (cached)

1.78 g

Annual (10K/mo)

374.7 kg

Emission Segments

Data Center

153 mg

Network

918 mg

Device

2.05 g

Resource Breakdown

JavaScript

104.8 KB

Images

961.0 KB

CSS

38.6 KB

Fonts

255.0 KB

HTML

14.7 KB

Other

28.8 MB

Green Hosting Verified

Hetzner Online GmbH

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

31%Critical

Interactive

HTTPS

No WAF

76d

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

16.04.2026

Valid Until

15.07.2026

Subject Alternative Names (2)

koerber-stiftung.dewww.koerber-stiftung.de

SHA-256 Fingerprint

18:00:97:40:5B:A2:92:6C:58:1D:C2:EB:16:36:18:BF:C9:0F:FA:D0...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 0s(max-age=0)

content-encoding

⚡ Brotli(br)

content-length

14714

content-type

text/html; charset=UTF-8

date

Wed, 29 Apr 2026 17:58:24 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

koerberstiftung-de01i.mail.protection.outlook.com

Domain Information

koerber-stiftung.de

Last Updated

10.01.2021

DNSSEC

Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

Data Protection Officer mentioned

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.

63/100

Mobile Friendly

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Koerber Repro + Source Serif Pro

WCAG Partial

71/100

Readability

/30

15/30

30px · LH 1.16

Hierarchy

/20

20/20

4x ratio · ✓ H1→H6

WCAG

/25

18/25

1:1 min contrast

Performance

/25

18/25

2 fonts · 6 req

Heading Font

Koerber Repro

Sans120px

Body Font

Source Serif Pro

Serif30px

Contrast Ratio

1:1

6 issues

Reading Comfort

~33 CPL

Narrow lines

120px

30px

38px

21px

30px

✅ Excellent readability: 30px body text is ideal for all devices.

⚠️ Tight line spacing (1.16). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 4.0x larger than body text.

Buy on MyFontsFluid Type (rem)Flesch 36

Color Palette

8 unique colors

Light

#ffffff

Background· 19.8%

#080504

Primary· 30.599999999999998%

#281e2a

Secondary· 13.1%

#2b2643

Secondary· 10.6%

#23140f

Secondary· 9%

#4d373c

Secondary· 8.2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

5 Resources

Scripts

Styles

Async

Defer

Top Script Sources

app.usercentrics.eu(2)a.koerber-stiftung.de(1)local(1)

Website Identity

Körber-Stiftung

FundingScheme

koerber-stiftung.de/

Location detected: 🇩🇪 Germanyvia tld

📧 Microsoft 365de

Sponsored

Last analyzed: 29 Apr 2026 at 17:58

Historical Analysis & Change Tracking