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Security report for heinlein-support.de

Heinlein Support GmbH · Technology · Germany

Medium risk. 5 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

63/100

Risk levelMedium

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

Heinlein Support GmbH is a German-based IT consulting company specializing in Linux expertise, secure communication, and data center solutions. The company offers a range of services including IT administration, consulting, training (Akademie), hosting, and SLA contracts. Their market position is that of a trusted Linux and open source specialist with a strong presence in the German IT sector, supported by multiple customer testimonials and references. The website is professionally designed, mobile-optimized, and provides clear navigation and relevant content targeting IT professionals and enterprises. Technically, the site is built on Drupal 10 with modern JavaScript libraries and is hosted by JPBerlin, a reputable German hosting provider. Security posture is good with HTTPS enforced and no visible vulnerabilities, though some security headers and explicit security policies are missing. Privacy compliance is adequate with a privacy policy and cookie policy present, but lacks a consent mechanism. Overall, the site demonstrates a mature digital presence with moderate tracking via Matomo analytics and a strong focus on trust and professionalism.

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

5 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

    • 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

  2. 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
  3. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Weak SPF Policy

      SPF record has permissive policy allowing any server to send email

      What to do: Use -all or ~all qualifier for better email security

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

Keep watching heinlein-support.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.

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
77
Security headers
65
Email security
55
DNS health
55
Network security
100
GDPR outside view
28
Average
63

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 heinlein-support.de, from OffSeq Breach.

No leaked records found

Breach holds no records for heinlein-support.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 company operates in the technology sector focusing on Linux and open source IT consulting and support. Their business model includes consulting, training, hosting, and managed services. The target audience is IT experts and organizations requiring secure Linux infrastructure. The presence of multiple references from universities, hospitals, and non-profits indicates a solid client base and market trust. The company leverages partnerships with JPBerlin for hosting and maintains active social media profiles on professional and privacy-respecting platforms. Growth indicators include regular news updates and a dedicated conference (SLAC). The company emphasizes quality and expertise, positioning itself as a premium provider in its niche.

Security posture

The website enforces HTTPS and uses Matomo for privacy-conscious analytics. No exposed sensitive data or vulnerable libraries were detected. However, the absence of security headers such as CSP, HSTS, and X-Frame-Options reduces the overall security hardening. There is no visible security policy or incident response information, nor a vulnerability disclosure or security.txt file. The site does not implement a cookie consent mechanism, which is a GDPR compliance gap. Overall, the security posture is good but could be improved by adding security headers, explicit policies, and consent mechanisms to enhance compliance and protection.

Recommendations

  1. Implement HTTP security headers including Content Security Policy (CSP), HSTS, and X-Frame-Options.
  2. Add a visible security policy and incident response information page to improve transparency.
  3. Introduce a cookie consent banner/mechanism to comply fully with GDPR requirements.
  4. Publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  5. Regularly audit and update third-party scripts and dependencies to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Heinlein Support GmbH
Description
Wir sind Linux-Experten und unterstützen Sie bei allen Themen rund um sichere Kommunikation und Linux im Rechenzentrum. Von IT-Administration bis IT-Consulting.
Key services
Expertise, Akademie (Linux training), Consulting, Services (hosting, SLA contracts, server management)
Content quality
excellent
Branding
consistent

Technology

Stack
Drupal 10, Commerce 2, jQuery, Once.js, LoadJS, Matomo Analytics
Frameworks
Drupal
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected in scripts
  • No visible forms collecting sensitive data without protection

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Matomo
Transparency
basic

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 in German and professionally presented.
  3. Strong focus on Linux expertise, consulting, training, and hosting services.
  4. Multiple customer references and testimonials enhance trust.
  5. Social media presence on professional and privacy-respecting platforms.
  6. No visible forms collecting personal data without protection.
  7. No explicit privacy or security policy pages found in main HTML but linked in footer.
  8. No visible security.txt or vulnerability disclosure policy.
  9. Use of Matomo analytics indicates privacy-conscious tracking.
  10. No advertising or affiliate marketing detected.
Technical notes

Notes

The website is built on Drupal 10 CMS with Commerce 2 module, using modern JavaScript libraries such as jQuery and LoadJS. It is hosted on JPBerlin, a German hosting provider, which aligns with the company's geographic focus. The site is mobile-optimized and accessible with good SEO practices including meta tags and structured navigation. Performance is moderate, with lazy loading of images and responsive design. There is no indication of technical debt or outdated technologies. The use of Matomo analytics reflects a privacy-conscious approach. Opportunities exist to enhance security headers and implement cookie consent mechanisms to improve compliance and security posture.
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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