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Security report for hartmutschreiber.com

Dipl. Ing. Hartmut Schreiber · Technology · Germany

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

53/100

Risk levelMedium

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

The website hartmutschreiber.com represents a small-scale professional service focused on software architecture, primarily using .NET technologies such as C#. The site is targeted at businesses or professionals seeking software development and architecture expertise. The business appears to be an individual consultant or small entity based in Germany, with a domain age consistent with a long-standing presence since 2009. The website content is basic but relevant, with a clear navigation structure and moderate branding consistency. Technically, the site uses Joomla! CMS with standard web technologies including jQuery and Font Awesome. Mobile optimization and accessibility are basic but functional. Security posture is moderate; while HTTPS is presumably enabled (not explicitly stated), no DNSSEC or security headers are present, and no cookie consent mechanism is implemented, which impacts GDPR compliance. Contact information is limited to a contact form with no explicit emails or phone numbers displayed. No social media or certifications are visible, limiting trust signals. Overall, the site is functional and professional but could benefit from enhanced security and privacy features.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

7 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 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';…

  2. GDPR outside view

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

    • 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

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

Keep watching hartmutschreiber.com

This scan found 24 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
72
Security headers
30
Email security
70
DNS health
70
Network security
20
GDPR outside view
53
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

Hartmut Schreiber operates as a software architect offering consulting and development services primarily in the Microsoft .NET ecosystem. The business model is service-oriented, targeting clients needing software architecture expertise. The market position is niche and individual-focused, with no indication of larger corporate affiliations or subsidiaries. The website content and domain registration data align well, supporting legitimacy. The external links to photography news and Flickr albums suggest personal interests but do not relate to the core business. There is no evidence of partnerships or affiliate programs. Growth indicators or revenue streams are not disclosed. The site serves as a professional portfolio and contact point rather than an e-commerce or lead generation platform.

Security posture

The security posture of the website is moderate but with notable gaps. The domain is protected against unauthorized transfer via clientTransferProhibited status, but DNSSEC is not enabled, which could expose the domain to DNS spoofing risks. No security headers such as Content-Security-Policy or Strict-Transport-Security are detected, reducing protection against common web attacks. The absence of cookie consent and privacy compliance mechanisms indicates GDPR compliance gaps. No incident response or security policy information is published, limiting transparency. No vulnerabilities or exposed sensitive data were detected in the provided content. Overall, the site would benefit from implementing modern security best practices and compliance measures to enhance trust and reduce risk.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Implement standard security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Add a cookie consent banner and update the privacy policy to reflect GDPR compliance requirements.
  4. Publish a security policy and incident response contact information to improve transparency and trust.
  5. Consider adding verified contact emails and phone numbers to facilitate direct communication and enhance business credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Dipl. Ing. Hartmut Schreiber
Description
Softwarearchitekt
Key services
.NET technology consulting and development, Software architecture
Content quality
basic
Branding
moderate

Technology

Stack
HTML5, CSS, JavaScript, jQuery, Font Awesome
Frameworks
Joomla!
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
50/100
Good practices seen
  • Domain status clientTransferProhibited set

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a personal/professional site for a software architect based in Germany.
  2. Content is primarily in German and focused on .NET technology and software architecture.
  3. No explicit privacy or cookie consent mechanisms visible on the site.
  4. No visible contact emails or phone numbers; contact is likely via a contact form.
  5. No security headers detected in provided data; DNSSEC not enabled.
  6. No social media links or business certifications displayed.
  7. External links include a photography news site and Flickr photo albums.
  8. Site uses Joomla! CMS with standard plugins and jQuery.
  9. No signs of advertising or tracking technologies detected.
Technical notes

Notes

The website is built on Joomla! CMS using standard web technologies such as HTML5, CSS, JavaScript, and jQuery. Font Awesome is used for icons. The site includes responsive meta tags but mobile optimization is basic. Performance appears moderate with no explicit speed optimizations detected. SEO is basic with meta description and author tags present but no advanced structured data or Open Graph tags. Accessibility features are minimal. Hosting and DNS are managed via RegistryGate GmbH and dns1.de - dns4.de name servers. No advanced analytics or tracking scripts are detected, indicating minimal data collection. The site structure is clear with a main navigation menu and content organized in panels. Overall, the technical implementation is functional but could be modernized and enhanced for performance, security, and SEO.
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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