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Security report for grey.de

Grey · Media · Germany

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

75/100

Risk levelMedium

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

Grey is a globally recognized advertising and marketing agency with a strong presence in Germany, offering a wide range of services including creative, experiential, social, digital, commerce, and health & wellness expertise. The company targets large enterprises, including one-fifth of the Fortune 500, positioning itself as a top-tier agency in the media sector. The website reflects a professional and enterprise-grade digital presence with modern technologies such as React and Next.js, and integrates Google Tag Manager and OneTrust for analytics and privacy compliance respectively. From a security perspective, the website employs HTTPS and a cookie consent mechanism, demonstrating a baseline commitment to user privacy and security. However, the absence of explicit privacy policy and terms of service pages, lack of visible security headers, and missing WHOIS data introduce moderate concerns. These gaps suggest opportunities for Grey to enhance transparency and security posture to align with best practices and regulatory requirements. Overall, the website is well-designed, content-rich, and professionally maintained, supporting Grey's market position and business credibility. The technical infrastructure is modern and performant, though improvements in security headers and explicit compliance documentation would strengthen the security and privacy posture. The domain WHOIS data is not publicly available, likely due to privacy protection, which is common for enterprises but should be monitored for legitimacy assurance. Strategically, Grey should focus on publishing comprehensive privacy and security policies, implementing robust security headers, and providing clear incident response and vulnerability disclosure channels to enhance trust and compliance. These steps will mitigate risks and reinforce Grey's reputation as a secure and privacy-conscious advertising leader.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 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

4 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics

      What to do: Document all third-party data sharing in your privacy policy

  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 SSL Key Length

      SSL certificate uses 256-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 grey.de

This scan found 18 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
75
Security headers
45
Email security
80
DNS health
85
Network security
100
GDPR outside view
65
Average
75

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

Grey operates as a leading advertising agency serving high-profile clients, including a significant portion of Fortune 500 companies. Its business model revolves around delivering creative and digital marketing solutions across multiple sectors, with a strong emphasis on health and wellness. The company leverages a global footprint with offices in Germany (Düsseldorf and Hamburg) and likely other international locations. The presence of dedicated contacts for new business, press, and careers indicates a structured organizational approach. Grey's competitive advantage lies in its comprehensive service offerings and established market position. The website's content and structure reflect a mature digital marketing strategy, supporting client engagement and brand positioning. Partnerships or subsidiaries are not explicitly identified in the data, but the company maintains a professional ecosystem with trusted technologies and compliance tools.

Security posture

The website demonstrates a moderate to good security posture with mandatory HTTPS encryption and a cookie consent mechanism compliant with GDPR principles. However, the lack of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces defense-in-depth effectiveness. No incident response or vulnerability disclosure information is provided, limiting transparency in security management. The absence of WHOIS data is a minor concern but likely due to privacy protection services. No exposed sensitive data or vulnerable libraries were detected in the provided content. Overall, the security posture is adequate for a corporate marketing site but could be improved by adopting additional security best practices and publishing clear security policies.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service pages accessible from the website footer or main navigation.
  2. Implement and configure security headers including CSP, HSTS, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  3. Provide clear incident response and vulnerability disclosure contact information to improve transparency and trust.
  4. Include data protection officer contact details to comply with GDPR and enhance user confidence.
  5. Regularly audit and update third-party scripts and tracking tools to minimize privacy risks and ensure compliance.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Grey
Description
Grey ranks among the worlds top advertising and marketing agencies providing creative, experiential, social, digital, commerce and health & wellness expertise to one-fifth of the FORTUNE 500.
Key services
creative, experiential, social, digital, commerce, health & wellness expertise
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, OneTrust Cookie Consent
Frameworks
Next.js
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with privacy preference center

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
OneTrust Cookie Consent
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design.
  2. No WAF or security challenge detected.
  3. WHOIS data is unavailable, indicating privacy protection or domain registration anomaly.
  4. Cookie consent mechanism is implemented with detailed preference center.
  5. No explicit privacy policy or terms of service pages found in the content.
  6. Contact information includes company domain emails and physical addresses in Germany.
  7. No phone numbers or social media links other than Twitter @greynewyork detected.
  8. Uses modern web technologies including React and Next.js.
  9. Google Tag Manager is used for analytics and tracking.
  10. No explicit security headers detected in the provided data.
Technical notes

Notes

The website is built using modern web technologies, primarily React and Next.js, enabling server-side rendering and improved performance. Google Tag Manager is integrated for analytics and marketing tracking, while OneTrust manages cookie consent and privacy preferences. The site is mobile responsive with good accessibility features and SEO optimization. Performance is moderate, with optimized images and lazy loading techniques observed. No CMS was explicitly detected, suggesting a custom or headless CMS solution. Hosting provider details are not available from the data. The technical implementation supports a professional and scalable digital presence but could benefit from enhanced security configurations and explicit metadata for privacy and compliance.
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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