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Security report for dieter-goelsdorf-history.de

Dieter Gölsdorf · Other · Germany

High risk. 10 critical or high findings in GDPR outside view, Network security and 3 other checks.

Security score

35/100

Risk levelHigh

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

Dieter Gölsdorf's website serves as a comprehensive personal and professional history archive focusing on guitar design and related music industry stories spanning from 1964 to the present. The site targets guitar enthusiasts and music professionals interested in the legacy and contributions of Dieter Gölsdorf, featuring detailed narratives, publications, and multimedia content. The business model appears to be centered on personal branding and historical documentation rather than direct commercial sales. Technically, the website employs a straightforward tech stack with jQuery and custom CSS, hosted on kasserver.com. The site is moderately optimized for performance and mobile use but lacks advanced CMS or modern frameworks. SEO and accessibility are basic but functional. No advanced analytics or tracking technologies are detected, indicating a privacy-conscious approach. From a security perspective, the site uses HTTPS but lacks visible security headers and cookie consent mechanisms, which lowers its security posture and privacy compliance. No contact information or incident response channels are provided, limiting user trust and support capabilities. The site content is safe and suitable for general audiences, with no adult or explicit material. Overall, the website is a well-maintained personal archive with good content quality and moderate technical implementation. Security and privacy compliance improvements are recommended to enhance trust and user protection.

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

10 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. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  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 dieter-goelsdorf-history.de

This scan found 33 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

€25per month

  • 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
55
DNS health
50
Network security
0
GDPR outside view
28
Average
35

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 · found on this site
  • 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 dieter-goelsdorf-history.de, from OffSeq Breach.

No leaked records found

Breach holds no records for dieter-goelsdorf-history.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

The website positions Dieter Gölsdorf as a niche personal brand and historian in the guitar design and music memorabilia sector. Its competitive advantage lies in detailed, authentic content backed by decades of industry experience and associations with notable musicians and brands. The business model is informational and archival, targeting enthusiasts and professionals rather than mass-market consumers. Growth potential may be limited without commercial offerings but could be enhanced by expanding media content or merchandising. The partnership ecosystem is minimal, with no explicit business partners or subsidiaries identified. Strategic observations suggest focusing on improving digital presence and security to build credibility.

Security posture

The current security maturity level is low to moderate. While HTTPS is presumably enabled, the absence of security headers, cookie consent, and incident response contacts indicates gaps in security best practices and GDPR compliance. No vulnerabilities or exposed sensitive data were detected in the HTML content, but the lack of security policies and contact information reduces readiness for incident handling. The security culture appears informal, consistent with a personal website rather than a corporate entity. Enhancing security headers, privacy mechanisms, and providing clear contact channels would significantly improve the security posture.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  2. Add a cookie consent banner and detailed cookie policy to comply with GDPR requirements.
  3. Publish clear contact information including email and phone for general and security incident reporting.
  4. Improve mobile responsiveness and accessibility to enhance user experience and compliance.
  5. Consider adding a security policy or incident response page to demonstrate security maturity and readiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Dieter Gölsdorf
Description
The website is a personal and business history digital book of Dieter Gölsdorf, focusing on guitar design, development, and related stories from 1964 to present. It covers his work with brands like Duesenberg, Göldo, Kluson, and others, including collaborations with famous musicians and his own band. The content includes detailed historical narratives, publications, media (audio and video), and personal anecdotes.
Key services
Guitar design history documentation, Publications, Media content related to guitar and music
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.7.1, CSS, HTML5, JavaScript
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
40/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
good
User experience
good
Content relevance
excellent
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is a personal and historical archive focused on guitar design and related stories.
  2. No visible contact emails or phone numbers on the main page or navigation.
  3. Privacy policy page exists but cookie policy and consent mechanisms are missing.
  4. No terms of service or security policy pages found.
  5. No visible forms or data collection mechanisms detected.
  6. No social media links explicitly labeled except share buttons for Twitter and Facebook.
  7. No security headers or advanced security measures detected in the HTML content.
  8. Website uses jQuery 3.7.1 and custom CSS, no CMS detected.
  9. Hosting via kasserver.com nameservers.
  10. No advertising or tracking scripts detected.
Technical notes

Notes

The website uses a simple and stable technology stack centered on jQuery 3.7.1 and CSS without a CMS or complex frameworks. Hosting is via kasserver.com, a known German hosting provider. Performance is moderate with no evident optimization for speed or advanced SEO techniques. The site is mobile responsive at a basic level but could benefit from modern responsive design frameworks. No analytics or tracking scripts were found, indicating minimal technical overhead and privacy-friendly design. Technical risks include outdated libraries (jQuery 3.7.1 is recent but jQuery itself is less favored in modern development) and lack of security headers. Modernization opportunities include adopting a CMS for easier content management, improving SEO, and enhancing security configurations.
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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