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Security report for ethikderki.de

Rainer Mühlhoff · Education · Germany

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

Security score

54/100

Risk levelMedium

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

The website represents the academic and professional profile of Rainer Mühlhoff, a philosophy professor specializing in the ethics and social philosophy of digital society and artificial intelligence. The site serves as a hub for his research group at the University of Osnabrück, offering publications, videos, and event information targeted at academics, students, and the interested public. The business model is academic and educational, focusing on knowledge dissemination and public engagement. Technically, the website is built using the Jekyll static site generator with the Minimal Mistakes theme, leveraging modern web technologies such as HTML5, CSS3, JavaScript, and jQuery. It embeds multimedia content primarily from YouTube and uses JSON-LD structured data for SEO and semantic clarity. The site is mobile-optimized and accessible, with good SEO practices. From a security perspective, the site uses HTTPS and does not expose sensitive data or vulnerable forms. However, it lacks explicit security headers and formal privacy or cookie policies, which are compliance gaps. No incident response or vulnerability disclosure information is provided. The WHOIS data is minimal but consistent with the academic nature of the site, with no suspicious indicators. Overall, the website is professional, trustworthy, and content-rich, but could improve in privacy compliance and security best practices to enhance user trust and regulatory adherence.

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

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. 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 ethikderki.de

This scan found 30 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.

Daily monitoring

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
62
Security headers
15
Email security
60
DNS health
60
Network security
100
GDPR outside view
28
Average
54

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 ethikderki.de, from OffSeq Breach.

No leaked records found

Breach holds no records for ethikderki.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

Rainer Mühlhoff holds a strong academic position with a focus on AI ethics and digital society philosophy. The website positions him as a thought leader with multiple publications, media appearances, and a dedicated research team. The target audience includes students, researchers, and the general public interested in AI and ethics. The business model is non-commercial, centered on academic dissemination and public education. Partnerships with university institutes and research organizations are evident. The site reflects a small but focused operation with high content quality and consistent branding. Growth indicators include recent publications, active event participation, and multimedia content production. The partnership ecosystem includes university departments and research institutes. The site’s operations emphasize transparency and knowledge sharing rather than commercial transactions.

Security posture

The website demonstrates a moderate security maturity level. HTTPS is used consistently, ensuring encrypted communication. No forms or inputs collect sensitive data, reducing attack surface. However, the absence of security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options limits protection against common web attacks. No vulnerability disclosure or incident response contacts are provided, which could hinder timely security issue reporting and resolution. Privacy and cookie policies are missing, representing compliance gaps under GDPR and related regulations. The site does not use tracking or analytics scripts, minimizing privacy risks. Overall, the security posture is adequate for an academic informational site but could be improved with standard security best practices and compliance documentation.

Recommendations

  1. Implement and publish a comprehensive privacy policy and cookie policy to comply with GDPR and enhance user trust.
  2. Add standard security headers (CSP, HSTS, X-Frame-Options, Referrer-Policy) to strengthen security posture.
  3. Establish a vulnerability disclosure policy or security.txt file with contact information for incident reporting.
  4. Regularly audit and update third-party scripts and embedded content to mitigate potential vulnerabilities.
  5. Consider adding accessibility enhancements and performance optimizations to improve user experience further.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rainer Mühlhoff
Description
Philosoph, Mathematiker, Programmierer. Research and teaching on societal impacts of artificial intelligence and digital media. Leads research group on Ethics and Critical Theories of AI at University of Osnabrück.
Key services
Research publications, Lectures and teaching, Public talks and media appearances, Videos and educational content
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, jQuery, YouTube embeds, FontAwesome icons, JSON-LD structured data
Frameworks
Jekyll, Minimal Mistakes Jekyll theme
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS usage (implied by https URLs)
  • No visible exposed sensitive data
  • No forms detected collecting sensitive data

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

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 academic, focused on AI ethics and philosophy.
  3. No privacy or cookie policies found, which is a compliance gap.
  4. No forms detected for data collection; contact via email link only.
  5. Social media presence on Mastodon, Bluesky, LinkedIn, YouTube.
  6. Uses Jekyll static site generator with Minimal Mistakes theme.
  7. No visible advertising or tracking scripts detected.
  8. Good SEO and accessibility practices observed.
  9. No explicit security headers detected in provided data.
  10. WHOIS data is minimal but domain appears consistent with website content.
Technical notes

Notes

The website is built on a static site architecture using Jekyll and the Minimal Mistakes theme, which provides a lightweight and maintainable platform. The tech stack includes modern HTML5, CSS3, JavaScript, and jQuery for interactivity. Multimedia content is embedded from trusted external sources like YouTube. SEO is enhanced through meta tags, Open Graph, Twitter cards, and JSON-LD structured data. The site is mobile responsive and accessible with clear navigation and language switching features. Performance is moderate, typical for static sites with embedded media. No CMS or dynamic backend detected, reducing complexity and attack surface. Hosting provider details are not explicit. Overall, the technical infrastructure is solid, modern, and appropriate for the site's academic and informational purpose.
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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