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stiftung-warentest.de

https://stiftung-warentest.de· First analyzed 16 May 2026· Updated 16 May 2026
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stiftung-warentest.de
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Mobile

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Hosting Provider

IP via link11.de

IP Address

128.65.209.96

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS34309

Organization

IP via link11.de

Nameservers

anycast2.iwelt.domains.anycast.iwelt.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
592 ms10%
Speed Index
770 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
458 KB
46 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
IP via link11.de

Technology Stack

5 Technologies Detected

Frameworks

1
Angular

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics 4

Tag Managers

1
Google Tag Manager

Customer Support

1
Zendesk

SEO Analysis

B76/100
25
2
2
Meta Tags13/15
Content3/12
Headings8/8
Technical21/25
E-E-A-T5/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness2/4
Mobile4/4
Indexability3/3
S
stiftung-warentest.destiftung-warentest.de

Startseite | Stiftung Warentest – Unabhängige Tests & Ratgeber

Stiftung Warentest: Testberichte zu Elektronik, Haushalt und Gesundheit sowie Finanzen, Versicherung und Steuern

Title Length62 chars

Recommended: 50-60 chars (~378px / 580px)

Description Length112 chars

Recommended: 120-160 chars

Issues (2)

  • • Very thin content (9 words). Search engines need substantial content for ranking.
  • • Most images missing alt text (82/83) — critical for accessibility and SEO

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

14 URLs

14 sub-sitemaps

robots.txt

53 rules

Sitemap reference found

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.

Sponsored

AI & LLM Readiness

F33/100
Bot Access
15/25
Machine Read.
7/25
Schema Data
7/25
Citation
4/25

AI Bot Access

8/14 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
Text ratio:3%
Words:2,656
Token eff.:Optimal

Structured Data

1 JSON-LD
Person×1.3(min)Organization×1.1WebSiteSearchAction

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
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.
C
68/100
9
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
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
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
76/100
A
46 mg
CO₂e / view
457.8 KB
Page Weight
90%
Cleaner Than
New Visitor
53 mg
vs
Returning (cached)
26 mg
Annual (10K/mo)
5.5 kg
Emission Segments
Data Center
2 mg
Network
14 mg
Device
30 mg
Resource Breakdown
JavaScript
162.7 KB
CSS
126.0 KB
HTML
164.1 KB
Other
5.0 KB
Green Hosting Verified
Link11 GmbH
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

46%Poor
Interactive

HTTPS

No WAF

49d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

03.06.2025

Valid Until

05.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.test.detest.de

SHA-256 Fingerprint

7D:44:24:FE:94:13:3B:4A:36:63:0E:37:52:32:F3:07:DF:F1:7E:25...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store,no-cache)
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=utf-8
date
Sat, 16 May 2026 15:53:32 GMT
expires
-1
link
<https://cdn.test.de/file/image/77/20/b3591518-fda7-4545-bf3...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (4)

mx02.hornetsecurity.com
mx04.hornetsecurity.com
mx03.hornetsecurity.com
mx01.hornetsecurity.com

Domain Information

stiftung-warentest.de

Last Updated

14.08.2024

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
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
78/100
Mobile Friendly198 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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

arial

WCAG AA
81/100
Readability
/30
18/30

14px · LH 1.43

Hierarchy
/20
20/20

3.43x ratio · ✓ H1→H6

WCAG
/25
19/25

4.6:1 min contrast

Performance
/25
24/25

System fonts

Heading Font

arial

Sans48px

Body Font

arial

Sans14px

Contrast Ratio

4.6:1

WCAG AA (≥4.5:1)

Reading Comfort

~37 CPL

Narrow lines
48px
h1
26px
h2
36px
h3
17px
h4
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 18/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.6:1).

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

✅ Strong hierarchy: Headlines are 3.4x larger than body text.

Variable FontsFlesch 18

Color Palette

12 unique colors
8.25:1 AAA Light
#ffffff
Background· 35.8%
#524e49
Other· 5.6%
#a9b3ba
Primary· 6.3%
#b38571
Secondary· 6.2%
#976453
Secondary· 5.2%
#caa794
Secondary· 4.6%
#e5e1df
Border· 3.7%
#cdbbab
Secondary· 3.2%

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

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Scripts & Styles

6 Resources

6
Scripts
0
Styles
4
Async
2
Defer

Top Script Sources

cdn.cxense.com(2)cdn-eu.piano.io(1)test.de(1)experience-eu.piano.io(1)cdn.test.de(1)

Website Identity

stiftung-warentest.de

Location detected: 🇩🇪 Germanyvia tld
de

Sponsored

Last analyzed: 16 May 2026 at 15:53

Historical Analysis & Change Tracking