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seenotretter.de

https://seenotretter.de· First analyzed 12 May 2026· Updated 12 May 2026
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seenotretter.de
Desktop screenshot of seenotretter.de
Mobile screenshot of seenotretter.de
Mobile

Sponsored

Hosting Provider

PLUTEX GmbH

IP Address

31.24.149.131

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Bremen, Germany

ASN

AS49855

Organization

PLUTEX GmbH

Server

Apache

Nameservers

ns1.plutex.de.ns2.plutex.de.ns3.plutex.de.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
744 ms10%
Speed Index
967 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
16.1 MB
60 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Technology Stack

7 Technologies Detected

Libraries

1
jQueryv3.7.1

Other

1
lazysizes

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

B75/100
22
6
1
Meta Tags14/15
Content12/12
Headings3/8
Technical21/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social1/5
Freshness2/4
Mobile4/4
Indexability3/3
S
seenotretter.deseenotretter.de

DGzRS Die Seenotretter | Die Seenotretter

Die Deutsche Gesellschaft zur Rettung Schiffbrüchiger (DGzRS) ist zuständig für Suche und Rettung auf Nord- und Ostsee – rund um die Uhr, bei jedem Wetter.

Title Length41 chars

Recommended: 50-60 chars (~250px / 580px)

Description Length155 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

12 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

10/100
Poor
3 12 2

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

Sponsored

AI & LLM Readiness

D45/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
3/25
Citation
12/25

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:2,649
Token eff.:Optimal
Sections/1K:1.9
Depth:1/5

Structured Data

1 JSON-LD
WebSiteSearchAction

Citation Readiness

Opening Summary89w
Descriptive Headingsavg 2.5w
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.
B
70/100
11
Passed
3
Critical
3
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
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.
4 recommendations
  • •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.
22/100
F
2.03 g
CO₂e / view
16.1 MB
Page Weight
5%
Cleaner Than
New Visitor
2.32 g
vs
Returning (cached)
1.16 g
Annual (10K/mo)
244.1 kg
Emission Segments
Data Center
454 mg
Network
488 mg
Device
1.09 g
Resource Breakdown
JavaScript
127.2 KB
Images
8.0 MB
CSS
7.9 MB
HTML
35.4 KB
Green Hosting Not Verified
PLUTEX GmbH
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

22d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.06.2025

Valid Until

03.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.seenotretter.deseenotretter.de

SHA-256 Fingerprint

76:78:40:77:52:87:08:BA:05:A6:DA:BA:D7:36:CA:23:47:36:6F:A6...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(private, no-store, max-age=0)
content-encoding
📦 Gzip(gzip)
content-language
de-DE
content-length
35920
content-type
text/html; charset=utf-8
date
Tue, 12 May 2026 19:02:50 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

75

SPF
DKIM
DMARC

MX Records (1)

seenotretter-de.mail.protection.outlook.com

Domain Information

seenotretter.de

Last Updated

15.11.2021

DNSSEC
Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner
Usercentrics
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Usercentrics
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
72/100
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...
Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG AA
62/100
Readability
/30
23/30

18px · LH 1.50

Hierarchy
/20
7/20
WCAG
/25
21/25

4.7:1 min contrast

Performance
/25
11/25

1 font · 10 req

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans18px

Contrast Ratio

4.7:1

WCAG AA (≥4.5:1)

Reading Comfort

~35 CPL

Narrow lines
32px
h2
28px
h3
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.7:1).

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

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

Buy on MyFontsFluid TypeFlesch 33

Color Palette

12 unique colors
17.17:1 AAA Light
#ffffff
Background· 33.99999999999999%
#191c1b
Text· 7.2%
#61728b
Primary· 10.3%
#505a69
Secondary· 5.7%
#9ab2b0
Secondary· 3.4%
#892923
Accent· 3.1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

15 Resources

12
Scripts
3
Styles
10
Async
1
Defer

Top Script Sources

web.eu1.cmp.usercentrics.eu(8)local(3)spenden.twingle.de(1)

Website Identity

seenotretter.de

0421536870
Location detected: 🇩🇪 Germanyvia tld
📧 Microsoft 365de

Sponsored

Last analyzed: 12 May 2026 at 19:03

Historical Analysis & Change Tracking