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blutspendedienst.com

https://blutspendedienst.com· First analyzed 24 May 2026· Updated 24 May 2026
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blutspendedienst.com
Desktop screenshot of blutspendedienst.com
Mobile screenshot of blutspendedienst.com
Mobile

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Hosting Provider

deltacity.NET GmbH & Co.

IP Address

91.190.229.241

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Emsdetten, Germany

ASN

AS42184

Organization

deltacity.NET GmbH & Co.

Server

Nginx

Nameservers

dns2.epag.net.ns01.deltacity.net.dns1.epag.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
593 ms10%
Speed Index
771 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
10.8 MB
43 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
deltacity.NET GmbH & Co.

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Nginx

SEO Analysis

D58/100
14
10
1
Meta Tags12/15
Content11/12
Headings8/8
Technical12/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
B
blutspendedienst.comblutspendedienst.com

Startseite - Blutspendedienst des BRK

Der Blutspendedienst des BRK (Bayerisches Rotes Kreuz) organisiert & veranstaltet Blutspendetermine & kümmert sich um die Versorgung von Kliniken &

Title Length37 chars

Recommended: 50-60 chars (~222px / 580px)

Description Length147 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (17/32) — critical for accessibility and SEO

11 issues found

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Crawlability

Sitemap
robots.txt

5 rules

Local SEO

Local Search Readiness

3/100
Poor
1 14 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

D42/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
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
navheader/footer
Text ratio:6%
Words:609
Token eff.:Optimal
Sections/1K:19.7
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary184w
Descriptive Headingsavg 3.8w
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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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
86/100
13
Passed
1
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
23/100
F
1.36 g
CO₂e / view
10.8 MB
Page Weight
5%
Cleaner Than
New Visitor
1.56 g
vs
Returning (cached)
779 mg
Annual (10K/mo)
163.5 kg
Emission Segments
Data Center
304 mg
Network
327 mg
Device
731 mg
Resource Breakdown
JavaScript
1.1 MB
Images
9.2 MB
CSS
467.1 KB
HTML
14.7 KB
Green Hosting Not Verified
deltacity.NET GmbH & Co.
7 recommendations
  • •Carbon footprint recommendation preview...
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C

Security Score

61%Fair
Interactive

HTTPS

No WAF

164d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

20.04.2026

Valid Until

04.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.blutspendedienst.comblutspendedienst.com

SHA-256 Fingerprint

40:99:EF:22:87:34:E8:B8:F9:2D:58:AE:48:59:B5:AF:88:44:75:1A...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0, private, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Sun, 24 May 2026 01:21:44 GMT
etag
W/"977710d8e06f5e7121ea9766d36f1d4e"
link
<https://www.blutspendedienst.com/assets/application-a07a558...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

smtp-gw.blutspendedienst.com

Domain Information

blutspendedienst.com

Domain Age
23y 8m

Created

12.09.2002

Expires

12.09.2026

Last Updated

13.09.2025

Registrar

EPAG Domainservices GmbH

DNSSEC
Not Enabled

Privacy & Compliance

CookieFirst

Cookie Consent Banner
CookieFirst
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: CookieFirst
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 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
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Source Sans Pro

WCAG AA
78/100
Readability
/30
25/30

17px · LH 1.53

Hierarchy
/20
19/20

2.47x ratio · ✓ H1→H6

WCAG
/25
21/25

5.8:1 min contrast

Performance
/25
13/25

1 font · 4 req

Heading Font

Source Sans Pro

Sans42px

Body Font

Source Sans Pro

Sans17px

Contrast Ratio

5.8:1

WCAG AA (≥4.5:1)

Reading Comfort

~38 CPL

Narrow lines
42px
h1
33px
h2
29px
h3
17px
p

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.53 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.8:1).

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

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

Buy on MyFontsFlesch 29

Color Palette

10 unique colors
Light
#ffffff
Primary· 45%
#030501
Primary· 16.9%
#e4c2a6
Accent· 6.7%
#c49473
Secondary· 6.1%
#392809
Accent· 6%
#f3e5df
Secondary· 5.2%
#be090f
Primary· 5.1%
#9b4528
Accent· 3.9%

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

6 Resources

5
Scripts
1
Styles
1
Async
0
Defer

Top Script Sources

consent.cookiefirst.com(2)addsearch.com(2)blutspendedienst.com(1)

Website Identity

blutspendedienst.com

23 years old
Location detected: 🇩🇪 Germanyvia ip
EPAG Domainservices GmbHde

Social Profiles

InstagramYouTube

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Last analyzed: 24 May 2026 at 01:21

Historical Analysis & Change Tracking