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Security report for dmo.de

DMO GmbH · Technology · Germany

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

56/100

Risk levelMedium

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

DMO GmbH operates a modern, regional data center located at the Münster Osnabrück Airport, focusing on high availability, sustainability, and digital resilience. The company is a joint venture of items GmbH & Co. KG and TKRZ Stadtwerke GmbH, leveraging extensive IT expertise and regional energy partnerships. Their services emphasize energy efficiency, secure infrastructure, and compliance with international standards such as ISO 27001 and DIN EN 50600 VK3. The website reflects a mature digital presence with professional design, clear navigation, and GDPR-compliant privacy and cookie policies. Embedded HubSpot forms and Leadinfo tracking support customer engagement and marketing efforts. Security posture is strong with HTTPS, security headers, and no visible vulnerabilities. Overall, the site and business demonstrate high trustworthiness and professionalism.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 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

6 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 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

      SSL Certificate Expires Soon

      SSL certificate expires in 21 days

      What to do: Renew SSL certificate before expiration

      • NIS2 21(2)(h)
      • IR 2024/2690 9.2(c): Implementing Regulation (EU) 2024/2690, Annex point 9.2(c): Cryptography
      • NIST SC-17: NIST SP 800-53 Rev. 5 SC-17: Public Key Infrastructure Certificates
    • High

      Weak SSL Key Length

      SSL certificate uses 384-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 dmo.de

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.

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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Full report

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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
42
Security headers
65
Email security
70
DNS health
65
Network security
20
GDPR outside view
73
Average
56

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 dmo.de, from OffSeq Breach.

No leaked records found

Breach holds no records for dmo.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

DMO GmbH is positioned as a key regional player in the data center market, targeting organizations requiring secure, sustainable, and resilient IT infrastructure. Their competitive advantage lies in combining energy-efficient operations with certified security standards and strong regional connectivity. The business model focuses on colocation and connectivity services, supported by parent companies with decades of IT and energy expertise. The company is actively building its brand with professional content, marketing tools, and a clear value proposition centered on digital sovereignty and sustainability. Partnerships with items GmbH and TKRZ Stadtwerke enhance credibility and operational capabilities.

Security posture

The website and business demonstrate a mature security posture, including ISO 27001 and DIN EN 50600 VK3 certifications, HTTPS enforcement, and comprehensive cookie consent management. No critical vulnerabilities or exposed sensitive data were detected. The use of secure third-party services like HubSpot and Matomo is well managed. However, the absence of a public incident response contact or vulnerability disclosure policy is noted as an area for improvement. Overall, the security culture appears strong, aligned with industry best practices and regulatory compliance.

Recommendations

  1. Publish a dedicated incident response and security contact page to improve transparency and readiness.
  2. Implement a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  3. Regularly review and update third-party scripts and embedded content to mitigate supply chain risks.
  4. Enhance iframe sandboxing and content security policies for external content to reduce attack surface.
  5. Maintain ongoing compliance audits and penetration testing to uphold certification standards.

Contact details published on the site

Addresses
Legal name
DMO GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
DMO GmbH
Description
DMO GmbH is a regional data center operator located at the Münster Osnabrück Airport, providing high-availability data center services with a focus on sustainability, energy efficiency, and digital resilience. It is a joint venture of items GmbH & Co. KG and TKRZ Stadtwerke GmbH, leveraging over 45 years of IT expertise.
Key services
High-availability data center infrastructure, National and international connectivity, Sustainable energy supply including photovoltaic generation, Secure IT operations with certifications
Content quality
excellent
Branding
consistent

Technology

Stack
TYPO3 CMS, Bootstrap 5, Three.js, Matomo Analytics, HubSpot Forms, Leadinfo tracking
Frameworks
TYPO3 CMS
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of secure cookies
  • Cookie consent with granular control
  • Use of certified security standards (ISO 27001, DIN EN 50600 VK3)
  • No exposed sensitive data in HTML
  • Secure embedded forms (HubSpot)

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
HubSpot, Leadinfo, Matomo
Marketing tools
HubSpot Forms, Leadinfo
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. Strong emphasis on sustainability and security certifications.
  3. Comprehensive cookie consent and privacy compliance.
  4. Use of modern web technologies and analytics.
  5. Clear contact information and embedded contact forms.
  6. No signs of malicious or suspicious activity.
  7. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built on TYPO3 CMS with modern front-end technologies including Bootstrap 5 and Three.js for interactive visuals. It uses Matomo for analytics, HubSpot for marketing and forms, and Leadinfo for visitor insights. The site is mobile-optimized, fast-loading, and accessible with proper meta tags and SEO practices. Hosting appears to be managed by parent companies with robust infrastructure. The technical stack is modern and well integrated, supporting a professional and secure online presence. Opportunities exist to further harden security and streamline third-party dependencies.
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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