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Security report for luerssen.de

Lürssen Werft Bremen GmbH & Co. KG · Transportation · Germany

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

53/100

Risk levelMedium

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

Lürssen Werft Bremen GmbH & Co. KG is a prestigious German shipbuilding company with a history dating back to 1875. The company specializes in the design and construction of bespoke luxury yachts, including superyachts and gigayachts, as well as high-performance naval and coastguard vessels. Their business model combines manufacturing with extensive after-sales services such as refits, maintenance, and yacht management. The company operates multiple specialized production sites across northern Germany, emphasizing quality and innovation in shipbuilding. The website serves as a portal directing visitors to dedicated sites for yachts and defense vessels, reflecting a clear market segmentation and professional brand presence. The target audience includes affluent private clients and government/military customers.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
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

5 findings rated critical or high. Fix these first.

  1. 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';…

  2. GDPR outside view

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

    • 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

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching luerssen.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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Recommended

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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
57
Security headers
30
Email security
60
DNS health
65
Network security
40
GDPR outside view
68
Average
53

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

Technical appendix

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

Business context

Business profile

Lürssen holds a strong market position as a world-renowned leader in luxury yacht and naval vessel construction. Their competitive advantage lies in their long-standing family ownership, deep shipbuilding expertise, and comprehensive service offerings. The company leverages a multi-site production strategy to maintain high quality and innovation. The website's linkage to separate domains for yachts and defense indicates a strategic approach to market segmentation. While direct contact details are limited on the portal, the presence of detailed privacy and cookie policies reflects compliance maturity. The company’s ecosystem includes partnerships and subsidiaries, though none explicitly listed on the portal. The business model is focused on high-value, custom manufacturing and related services, targeting a niche but lucrative market segment.

Security posture

The website employs HTTPS and integrates a cookie consent mechanism, demonstrating baseline security and privacy compliance. The use of Matomo analytics and CookieFirst consent management indicates attention to user privacy and data protection. However, the absence of explicit security headers and published security or incident response policies suggests room for improvement in security posture transparency. No vulnerabilities or exposed sensitive data were detected in the analyzed content. The lack of a security.txt file or vulnerability disclosure policy is a gap in modern security best practices. Overall, the security maturity is moderate, suitable for a corporate informational site but could be enhanced to meet higher standards expected in the defense sector.

Recommendations

  1. Implement comprehensive security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish explicit security and incident response policies on the website to improve transparency and readiness.
  3. Add a security.txt file to facilitate responsible vulnerability disclosure and improve trust with security researchers.
  4. Enhance accessibility features to comply with recognized standards and improve user experience for all visitors.
  5. Regularly audit third-party scripts and dependencies to mitigate risks from vulnerable libraries or tracking tools.

Contact details published on the site

Addresses
Legal name
Lürssen Werft Bremen GmbH & Co. KG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Lürssen Werft Bremen GmbH & Co. KG
Description
The northern German shipyard group, Lürssen, has been renowned worldwide for constructing highest-quality vessels and implementing innovative technology in shipbuilding since 1875. Headquartered in Bremen-Vegesack, the family-owned company specializes in the design and manufacture of luxury yachts, as well as naval and coastguard vessels. The new-build operations are complemented by extensive after-sales services, including repair, refit, maintenance and global logistics support. Located at eight highly specialized production sites in Bremen, Hamburg, Mecklenburg-Vorpommern, Lower Saxony and Schleswig-Holstein, the qualified and experienced employees continue to combine the proven shipbuilding traditions of northern Germany with a passion for excellence.
Key services
custom design and construction of superyachts and gigayachts, naval and coastguard vessel manufacturing, newbuilds, refits, maintenance, yacht management
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Matomo Analytics, CookieFirst Consent Management
Frameworks
Nuxt.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
CookieFirst 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 professionally designed and well-structured.
  2. Clear separation of yacht and defense business units with dedicated external links.
  3. Cookie consent mechanism is implemented with CookieFirst.
  4. No contact emails or phone numbers explicitly found on the main portal page; contact likely on linked sites.
  5. No forms detected on the main portal page.
  6. No explicit security or incident response policies published on the portal.
  7. No terms of service page found on the portal.
  8. Use of modern JavaScript framework Nuxt.js for SSR.
  9. Hosting on AWS infrastructure inferred from DNS.
  10. No suspicious or malicious content detected.
Technical notes

Notes

The website is built using the Nuxt.js framework, a modern Vue.js SSR platform, indicating a contemporary and maintainable technical infrastructure. Hosting is provided via Amazon AWS, inferred from DNS servers, ensuring reliable and scalable performance. The site includes responsive design and cookie consent management, reflecting compliance with privacy regulations. Performance is moderate, with potential for optimization. SEO is well addressed through meta tags and structured content. Accessibility is basic but could be improved. No CMS is explicitly detected beyond the Nuxt.js framework. The use of Matomo analytics shows a preference for privacy-conscious tracking. Overall, the technical stack is modern and appropriate for a corporate site of this nature.
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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