die-bonn.de

https://die-bonn.de· First analyzed 12 May 2026· Updated 12 May 2026

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die-bonn.de

Mobile

Sponsored

Hosting Provider

Deutsches Institut fuer Erwachsenenbildung (DIE) e.V.

IP Address

213.168.127.248

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Cologne, Germany

ASN

AS8422

Organization

Deutsches Institut fuer Erwachsenenbildung (DIE) e.V.

Nameservers

oxygen.ns.hetzner.com.helium.ns.hetzner.de.hydrogen.ns.hetzner.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

537 ms10%

Speed Index

698 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1019 KB

100 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Deutsches Institut fuer Erwachsenenbildung (DIE) e.V.

Technology Stack

5 Technologies Detected

CSS Frameworks

Libraries

Icon Libraries

Analytics

SEO Analysis

D59/100

Meta Tags7/15

Content12/12

Headings6/8

Technical12/21

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

die-bonn.dedie-bonn.de

Deutsches Institut für Erwachsenenbildung - Leibniz-Zentrum für Leb...

Das Deutsche Institut für Erwachsenenbildung – Leibniz-Zentrum für Lebenslanges Lernen (DIE) ist die zentrale Einrichtung für Wissenschaft und Praxis der Wei...

Title truncated. Description truncated.

Title Length89 chars

Recommended: 50-60 chars (~539px / 580px)

Description Length325 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (89 chars, ~539px). Will be truncated in search results.

10 issues found

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Local SEO

Local Search Readiness

5/100

Poor

2 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

D42/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

Citation

10/25

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:13%

Words:1,097

Token eff.:Optimal

Sections/1K:10

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary64w

Descriptive Headingsavg 7.5w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

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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.

67/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

15/20

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

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

3/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 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.

56/100

103 mg

CO₂e / view

1019.4 KB

Page Weight

70%

Cleaner Than

New Visitor

118 mg

Returning (cached)

59 mg

Annual (10K/mo)

12.4 kg

Emission Segments

Data Center

5 mg

Network

30 mg

Device

68 mg

Resource Breakdown

JavaScript

240.3 KB

Images

631.1 KB

CSS

136.5 KB

HTML

10.7 KB

Other

911 B

Green Hosting Verified

NetCologne GmbH

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

No SSL

No WAF

N/A

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HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-encoding

📦 Gzip(gzip)

content-length

10636

content-type

text/html; charset=utf-8

date

Tue, 12 May 2026 02:14:14 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

diebonn-de0i.mail.protection.outlook.com

Domain Information

die-bonn.de

Last Updated

23.04.2026

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

73/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto

WCAG Partial

67/100

Readability

/30

19/30

14px · LH 1.42

Hierarchy

/20

12/20

2.12x ratio

WCAG

/25

17/25

3.4:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Roboto

Sans29px

Body Font

Roboto

Sans14px

Contrast Ratio

3.4:1

20 issues

Reading Comfort

~46 CPL

Optimal (45–75)

29px

20px

19px

15px

14px

❌ Critical: 14px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.42 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 20 elements below WCAG AA threshold (min 3.4:1).

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

Flesch 31

Color Palette

11 unique colors

Light

#ffffff

Background· 28.7%

#038fd0

Primary· 10.3%

#4e3e48

Secondary· 9%

#8d7772

Secondary· 8.4%

#b8a99f

Secondary· 7.3%

#7ea6c1

Secondary· 5.4%

#d0dae0

Secondary· 4.4%

#f4e1c9

Accent· 3.1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)webanalyse.die-bonn.de(1)

Website Identity

die-bonn.de

info@die-bonn.de

Location detected: 🇩🇪 Germanyvia tld

📧 Microsoft 365de

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Last analyzed: 12 May 2026 at 02:15

Historical Analysis & Change Tracking