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bdu.de

https://bdu.de· First analyzed 15 May 2026· Updated 15 May 2026
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bdu.de
Desktop screenshot of bdu.de
Mobile screenshot of bdu.de
Mobile

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Hosting Provider

Mittwald CM Service GmbH und Co.

IP Address

45.144.187.42

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS15817

Organization

Mittwald CM Service GmbH und Co.

Nameservers

dns12.netcologne.de.dns13.netcologne.de.dns14.netcologne.de.dns11.netcologne.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
481 ms10%
Speed Index
625 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
19 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

1 Technologies Detected

CSS Frameworks

1
Tailwind CSS

SEO Analysis

C68/100
19
7
2
Meta Tags9/15
Content10/12
Headings6/8
Technical23/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social1/5
Freshness0/4
Mobile4/4
Indexability3/3
B
bdu.debdu.de

Bundesverband Deutscher Unternehmensberatungen

No description available for this page.

Title Length46 chars

Recommended: 50-60 chars (~288px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (15/25) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

8 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100
Poor
3 13 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.
13/25
Schema Data
6/25
Citation
9/25

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:8%
Words:1,038
Token eff.:Optimal
Sections/1K:15.4
Depth:1/5

Structured Data

2 JSON-LD
Article×1.2microdataWebSiteBreadcrumbList

Citation Readiness

Opening Summary13w
Descriptive Headingsavg 7.5w
Canonical URL
Open Graph0/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
A
85/100
13
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
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
8/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
81/100
B
127 mg
CO₂e / view
1.2 MB
Page Weight
70%
Cleaner Than
New Visitor
145 mg
vs
Returning (cached)
73 mg
Annual (10K/mo)
15.3 kg
Emission Segments
Data Center
6 mg
Network
37 mg
Device
84 mg
Resource Breakdown
JavaScript
106.9 KB
Images
1002.7 KB
CSS
123.4 KB
HTML
25.2 KB
Green Hosting Verified
Mittwald CM Service GmbH & Co. KG
GWF Verified
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A+

Security Score

91%Excellent
Static / Informational

HTTPS

No WAF

32d

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

19.03.2026

Valid Until

17.06.2026

Subject Alternative Names (1)

www.bdu.de

SHA-256 Fingerprint

52:5C:32:65:3B:92:D4:6F:6B:70:65:D8:8D:93:24:26:53:12:33:04...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 8 Hours(max-age=31823)
content-encoding
📦 Gzip(gzip)
content-language
de-DE
content-length
25505
content-type
text/html; charset=utf-8
date
Fri, 15 May 2026 23:30:55 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

bdu-de.mail.protection.outlook.com

Domain Information

bdu.de

Last Updated

19.06.2014

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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.
B
73/100
Mobile Friendly4 breakpoints
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

Source Serif 4 + Arial

WCAG Partial
68/100
Readability
/30
25/30

16px · LH 1.50

Hierarchy
/20
16/20

2.62x ratio

WCAG
/25
11/25

1:1 min contrast

Performance
/25
16/25

System fonts

Heading Font

Source Serif 4

Serif42px

Body Font

Arial

Sans16px

Contrast Ratio

1:1

3 issues

Reading Comfort

~34 CPL

Narrow lines
42px
h1
36px
h2
24px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 10/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

Buy on MyFontsFlesch 10

Color Palette

11 unique colors
Light
#ffffff
Text· 10.7%
#f0efeb
Primary· 23.599999999999998%
#8f1147
Accent· 10.2%
#5a1745
Accent· 9.1%
#b2bcc4
Secondary· 8.4%
#312b3b
Secondary· 7.9%
#e4dadd
Secondary· 7.6%
#ad7d88
Secondary· 6.5%

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

2 Resources

1
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

local(1)

Website Identity

Bundesverband Deutscher Unternehmensberatungen

www.bdu.de/
Location detected: 🇩🇪 Germanyvia tld
📧 Microsoft 365de

Social Profiles

LinkedInYouTube

Sponsored

Last analyzed: 15 May 2026 at 23:31

Historical Analysis & Change Tracking