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Security report for gtue.de

GTÜ Gesellschaft für Technische Überwachung mbH · Transportation · Germany

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

52/100

Risk levelMedium

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

GTÜ Gesellschaft für Technische Überwachung mbH is a leading German organization specializing in official vehicle inspections, technical services, damage assessment, and certification. It holds a strong market position as the largest officially recognized supervisory organization for freelance automotive experts in Germany. The website is professionally designed, content-rich, and targets both private and business customers with a broad portfolio of services including vehicle inspections, technical services, building inspections, and certification. The company operates several subsidiaries and maintains a robust digital presence with social media and partner portals. Technically, the website uses modern technologies including Google Tag Manager and Usercentrics for consent management, hosted on AWS infrastructure, ensuring good performance and mobile optimization. Security posture is strong with HTTPS enforced and privacy compliance mechanisms in place, although some security headers could be improved. No critical vulnerabilities or blocking mechanisms were detected, indicating a mature and trustworthy online presence.

Scanned

NIS2 and GDPR posture

GDPR outside view
28/ 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

8 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

  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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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';…

Need hands-on remediation? Email guard@offseq.com

Keep watching gtue.de

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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
20
Email security
55
DNS health
45
Network security
100
GDPR outside view
28
Average
52

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 gtue.de, from OffSeq Breach.

Total records
35
Employees
0
Customers
35
Third parties
0
Weak passwords
43%

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 gtue.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

GTÜ operates in the transportation and manufacturing sectors, providing essential vehicle inspection and certification services. Its business model revolves around regulatory compliance, technical expertise, and customer service for both private individuals and commercial clients. The company benefits from a large network of partners and subsidiaries, enhancing its service reach. The presence of ISO certifications and official accreditations strengthens its competitive advantage. The website supports growth through clear navigation, multilingual support, and dedicated portals for partners and careers. GTÜ's strategic focus on sustainability and e-mobility aligns with current market trends, positioning it well for future expansion.

Security posture

The website demonstrates a solid security foundation with HTTPS and consent management for cookies. The use of Usercentrics indicates GDPR awareness and compliance. However, the absence of explicit security headers like Content Security Policy or HSTS suggests room for improvement. No incident response or vulnerability disclosure information is publicly available, which could be enhanced to improve transparency and readiness. No exposed sensitive data or vulnerable libraries were detected. Overall, the security posture is good but could benefit from additional hardening and published security policies.

Recommendations

  1. Implement and enforce security headers such as CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish an incident response contact or security.txt file to improve transparency and facilitate vulnerability reporting.
  3. Enhance accessibility features to comply with WCAG standards and improve user experience for all visitors.
  4. Regularly audit third-party scripts and tracking tools to ensure they do not introduce vulnerabilities or privacy risks.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and best practices.

Contact details published on the site

Addresses
Legal name
GTÜ Gesellschaft für Technische Überwachung mbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
GTÜ Gesellschaft für Technische Überwachung mbH
Description
Wir sind die größte amtlich anerkannte Überwachungsorganisation freiberuflicher Kfz-Sachverständiger in Deutschland.
Key services
Amtliche Fahrzeuguntersuchungen, Technischer Dienst, Schaden & Bewertung, Anlagensicherheit, Zertifizierung, Bau- und Baudienstleistungen, GTÜ-Classic Services
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Google Tag Manager, Usercentrics Consent Management
Frameworks
Usercentrics Consent Framework
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for cookies
  • Ads data redaction enabled
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
minimal
Privacy practices
good

Advertising

Marketing tools
Usercentrics Consent Management
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is comprehensive and professionally presented in German with English option.
  3. Strong focus on vehicle inspection, technical services, and certifications.
  4. Multiple subsidiary companies are clearly listed and linked.
  5. Consent management is implemented via Usercentrics.
  6. No visible security vulnerabilities or exposed sensitive data.
  7. Social media presence across major platforms.
  8. Contact information is complete and clearly presented.
  9. No evidence of incident response or vulnerability disclosure pages.
Technical notes

Notes

The website is built using standard web technologies including HTML5, CSS, and JavaScript, with integration of Google Tag Manager and Usercentrics for analytics and consent management. Hosting on AWS DNS infrastructure suggests reliable and scalable hosting. The site is mobile-optimized and performs moderately well, though no explicit CMS was detected. The technical implementation is modern and professional, supporting a rich content structure and multiple service portals. Opportunities exist to improve technical SEO and accessibility compliance. No technical debt or legacy technology indicators were found.
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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