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Security report for testsieger.de

Testsieger.de Vergleichsportal GmbH · Retail · Germany

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

60/100

Risk levelMedium

0–100, higher is better. How it is calculated

Testsieger.de Vergleichsportal GmbH operates a comprehensive German-language product comparison and review website, offering over 700,000 test reports across numerous product categories. The platform targets German-speaking consumers seeking reliable product information and price comparisons to aid purchasing decisions. The business model is primarily based on affiliate marketing and advertising, supported by extensive content and user reviews. Technically, the website employs modern JavaScript frameworks (likely Vue.js), modular scripts, and integrates major analytics and advertising platforms such as Google Tag Manager, Microsoft Clarity, and Bing Ads. The site is well-optimized for SEO, mobile responsiveness, and accessibility, reflecting a mature digital infrastructure. Security posture is strong with HTTPS enforced and consent management for GDPR compliance, though explicit security policies and incident response contacts are not publicly available. Overall, the domain and hosting setup are consistent with a legitimate, professional business. Strategic recommendations include publishing dedicated security and incident response policies, implementing a vulnerability disclosure program, and enhancing transparency around data retention. The website is safe for general audiences and demonstrates high professionalism and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

7 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  2. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

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Keep watching testsieger.de

This scan found 26 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
62
Security headers
30
Email security
60
DNS health
65
Network security
100
GDPR outside view
40
Average
60

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention testsieger.de, from OffSeq Breach.

Total records
326
Employees
0
Customers
279
Third parties
47
Weak passwords
25%

6 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for testsieger.de.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The company holds a strong position in the German e-commerce and retail sector as a trusted product review and price comparison portal. Its competitive advantage lies in the volume and quality of test reports aggregated from 1,600 sources, appealing to consumers seeking informed purchase decisions. Revenue streams likely include affiliate commissions and advertising. The target customer segment is broad, encompassing general consumers interested in electronics, household appliances, baby products, and more. The platform's partnership ecosystem includes major ad networks and tracking services, supporting monetization and marketing efforts. Growth indicators include frequent content updates and a wide product range. The company maintains consistent branding and a professional online presence, reinforcing market credibility.

Security posture

The website demonstrates a solid security foundation with HTTPS enforced and use of consent management tools to comply with GDPR. Security best practices such as asynchronous script loading and no visible exposure of sensitive data are observed. However, the absence of a published security policy, incident response contact information, and vulnerability disclosure mechanisms indicates room for improvement in transparency and readiness. No vulnerabilities or suspicious activities were detected in the analyzed content. The security score reflects a mature posture but suggests enhancements in policy communication and incident handling to strengthen trust and compliance.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and publicize a vulnerability disclosure program and security.txt file.
  4. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  5. Enhance transparency on data retention policies and user privacy protections.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Testsieger.de Vergleichsportal GmbH
Description
Mit über 700.000 Testberichten aus 1.600 Quellen zur richtigen Kaufentscheidung ➤ Jetzt Produkte vergleichen auf Testsieger.de!
Key services
Product test reports, Price comparison, Consumer advice
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript ES Modules, Google Tag Manager, Microsoft Clarity, Bing Ads, Varify.io, Consent Manager
Frameworks
Vue.js (inferred from data-v-app attributes), Swiper.js (for sliders)
Platforms
Web desktop, Mobile responsive design
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for GDPR compliance
  • No exposed sensitive data in HTML
  • Use of async loading for scripts

Analytics and tracking

Services
Microsoft Clarity, Google Analytics (via GTM inferred)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads, Bing Ads
Tracking pixels
Microsoft Clarity, Bing UET
Marketing tools
Consent Manager
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is a professional German product comparison and review portal.
  2. Content is rich with over 700,000 test reports and multiple product categories.
  3. Strong SEO and marketing integrations with Google and Microsoft services.
  4. Good GDPR compliance with consent management and privacy policy.
  5. No direct contact emails or phone numbers found on the homepage or main HTML content.
  6. No explicit security or incident response policies published.
  7. No vulnerability disclosure or security.txt found.
  8. Use of modern JavaScript frameworks and modules indicates up-to-date technology stack.
  9. No signs of malicious or suspicious content.
Technical notes

Notes

The website is built using modern web technologies including JavaScript ES modules and likely Vue.js framework, ensuring modularity and maintainability. It integrates advanced analytics and advertising tools such as Google Tag Manager, Microsoft Clarity, and Bing Ads, supporting data-driven marketing strategies. The site is hosted with professional DNS providers (Constellix) and employs responsive design for excellent mobile optimization. Performance is fast with asynchronous loading of scripts and optimized images. SEO is well addressed with proper meta tags and structured navigation. No CMS was explicitly detected, suggesting a custom or proprietary platform. Technical risks are minimal but continuous monitoring of third-party dependencies is advised to avoid supply chain vulnerabilities.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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