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Security report for koelnmesse.com

Koelnmesse GmbH · Other · Germany

Medium risk. 5 critical or high findings in Security headers and GDPR outside view.

Security score

69/100

Risk levelMedium

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

Koelnmesse GmbH is a leading trade fair and event organizer based in Cologne, Germany, with a century-long history since its founding in 1924. The company operates over 80 trade fairs and exhibitions both locally and in key global markets, serving a diverse audience including exhibitors, visitors, and trade fair organizers. Koelnmesse has a strong market position, recognized for its sustainability efforts and industry leadership, including recent awards such as 'Company of the Year' 2025 and 'Pioneer in Sustainability 2024'. Technically, the website employs a modern tech stack including jQuery, OneTrust for privacy management, Google Tag Manager, and various third-party integrations for social media and advertising. Hosting is provided via Amazon AWS infrastructure. Performance is moderate with good mobile optimization and basic accessibility features. SEO practices are good, supporting the company's digital presence. From a security perspective, while email security is well managed with valid SPF and DMARC records, the absence of a valid SSL certificate and lack of modern TLS protocols represent significant vulnerabilities. The site lacks HSTS, OCSP stapling, and other advanced security headers, lowering its overall security posture. No vulnerability disclosure or security.txt files were found, indicating limited transparency in security incident handling. Overall, Koelnmesse presents a professional and trustworthy online presence with strong business credentials but requires urgent improvements in its SSL/TLS configuration and security best practices to protect user data and maintain compliance with modern security standards.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 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. 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 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 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

      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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, Twitter, LinkedIn

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

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

Keep watching koelnmesse.com

This scan found 20 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
90
Security headers
30
Email security
75
DNS health
80
Network security
100
GDPR outside view
40
Average
69

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

Koelnmesse operates as an essential entity in the trade fair and event sector, focusing on facilitating international trade and networking. Its business model revolves around organizing large-scale events, providing services such as stand construction, marketing, and logistics. The company targets SMEs, large enterprises, and industry professionals globally. Its competitive advantage lies in its long-standing reputation, extensive event portfolio, and commitment to sustainability. The presence of a wholly-owned subsidiary, Koelncongress GmbH, expands its service offerings into congress and meeting management. The company leverages partnerships and digital tools to enhance customer engagement and operational efficiency.

Security posture

The current security maturity of Koelnmesse's web presence is moderate but with critical gaps. The valid SPF and DMARC records indicate good email security practices, reducing phishing risks. However, the lack of a valid SSL certificate and disabled TLS protocols expose the site to data interception and man-in-the-middle attacks. The absence of HSTS and OCSP stapling further weakens the security posture. No explicit incident response or vulnerability disclosure mechanisms are publicly available, which may hinder timely response to security events. GDPR compliance is supported by comprehensive privacy and cookie policies managed via OneTrust, reflecting a strong privacy culture. Overall, the security posture requires immediate attention to encryption and transparency to align with best practices and regulatory requirements.

Recommendations

  1. Install and maintain a valid SSL/TLS certificate supporting TLS 1.2 or 1.3 to secure all web traffic.
  2. Enable HTTP Strict Transport Security (HSTS) with includeSubDomains and preload to enforce secure connections.
  3. Implement OCSP stapling and session resumption to improve security and performance.
  4. Publish a security.txt file and establish a clear vulnerability disclosure policy to enhance transparency and incident response.
  5. Regularly audit and update security headers and configurations to mitigate common web vulnerabilities.

Contact details published on the site

Addresses
Legal name
Koelnmesse GmbH
Technical notes

Notes

The website is built on a modern JavaScript-based frontend with jQuery and uses third-party services such as OneTrust for cookie consent, Google Tag Manager for analytics, and Smart Ad Server for advertising. Hosting is on Amazon AWS, indicated by the DNS nameservers. Performance is moderate with a page load time of approximately 5.5 seconds and a page size of about 633 KB. Mobile optimization is good with responsive images and language selection features. Accessibility is basic, with some focus management and ARIA roles present. SEO is supported by meta tags, Open Graph data, and structured JSON-LD data. However, the lack of a valid SSL certificate and disabled TLS protocols represent significant technical risks that could impact user trust and data security.
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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