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Security report for g-m-m.de

GMM AG · Media · Germany

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

Security score

51/100

Risk levelMedium

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

GMM AG is a well-established German media and communication agency with over three decades of experience, specializing in integrated 360-degree communication solutions including film production, web projects, social media, branding, and live streaming. The company targets businesses and organizations seeking comprehensive media and communication services, positioning itself as a reliable partner with a broad service portfolio and strong client references. Technically, the website is built on TYPO3 CMS with modern frontend frameworks and analytics tools such as Matomo and Google Analytics, demonstrating a mature digital infrastructure. The site is mobile-optimized and features a professional design with clear navigation and rich content. Security-wise, the website enforces HTTPS and implements cookie consent mechanisms, though it lacks explicit security headers and incident response information. Overall, the site is trustworthy, compliant with GDPR, and free from suspicious content or vulnerabilities, reflecting a strong security posture and business credibility.

Scanned

NIS2 and GDPR posture

GDPR outside view
55/ 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. 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

  2. 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 g-m-m.de

This scan found 27 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
25
Email security
70
DNS health
65
Network security
20
GDPR outside view
55
Average
51

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

The company operates in the media sector, offering a diverse range of services from film production to digital communication tools. Its business model is service-oriented, focusing on client-tailored communication strategies. The presence of multiple office locations and partnerships with foundations and other organizations indicates a solid regional and sectoral network. The website content and social media presence suggest active engagement and ongoing projects, supporting growth and market relevance. The company’s longevity and consistent branding reinforce its competitive advantage and market position as a medium-sized, reputable agency in Germany.

Security posture

The website demonstrates a good security baseline with HTTPS enforced and a comprehensive cookie consent mechanism aligned with GDPR requirements. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces the overall security hardening. No incident response or security policy information is publicly available, which could be improved to enhance transparency and preparedness. The use of well-maintained libraries and no visible exposure of sensitive data are positive indicators. Overall, the security posture is solid but could benefit from additional best practices and documentation.

Recommendations

  1. Implement standard security headers (CSP, HSTS, X-Frame-Options) to enhance protection against common web attacks.
  2. Publish a clear security policy and incident response contact information to improve transparency and readiness.
  3. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  4. Enhance website accessibility features to comply with recognized standards and improve user experience for all users.
  5. Consider adding a security.txt file to facilitate responsible vulnerability disclosure.

Contact details published on the site

Addresses
Legal name
GMM AG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
GMM AG
Description
GMM AG is a 360-degree agency offering integrated communication solutions including analysis, planning, organization, execution, and control of internal and external communication across relevant channels.
Key services
Film production, Web projects, Social media, Branding, Live streaming, Media consulting, Conference tools, Mobile editorial services, Studio services
Content quality
excellent
Branding
consistent

Technology

Stack
TYPO3 CMS, Bootstrap CSS, jQuery, Matomo Analytics, Font Awesome, Fancybox, Slick Carousel, JustifiedGallery
Frameworks
TYPO3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected in scripts

Analytics and tracking

Services
Matomo, Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
Matomo Analytics
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with rich content and multimedia.
  2. Strong branding and consistent design throughout.
  3. Comprehensive cookie consent and privacy policy implementation.
  4. No visible security policy or incident response information.
  5. Use of modern web technologies and analytics tools.
  6. Clear contact information with multiple office locations.
  7. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on TYPO3 CMS, leveraging Bootstrap for responsive design and jQuery for interactivity. It integrates advanced frontend libraries such as Slick Carousel and JustifiedGallery for media presentation. Analytics are handled via Matomo and Google Analytics with cookie consent management, reflecting compliance with privacy regulations. The site is mobile-optimized with adaptive video content and custom cursor effects enhancing user experience. Performance is moderate, with room for optimization in loading times and accessibility. The technical stack is modern and well-maintained, supporting the company’s digital presence effectively.
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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