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Security report for kultur-frankfurt.de

Stadt Frankfurt am Main Kulturamt · Government · Germany

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

Security score

47/100

Risk levelHigh

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

The KulturPortal Frankfurt is the official cultural information portal of the city of Frankfurt am Main, Germany. It provides comprehensive information on various cultural sectors including architecture, theater, design, film, museums, music, literature, and city history. The portal targets residents and visitors interested in cultural events and institutions, serving as a government-operated platform to promote cultural engagement and events in the city. The website is well-branded with consistent use of official city logos and links to related municipal sites, reinforcing its authoritative position. Technically, the site is built on ASP.NET WebForms with a modern JavaScript stack including jQuery and accessibility enhancements via Eye-Able scripts. It uses Matomo for analytics with a GDPR-compliant cookie consent mechanism. The site is hosted on city-controlled nameservers, ensuring control and security. Performance is moderate with basic mobile optimization and good SEO practices. From a security perspective, the site enforces HTTPS and implements cookie consent but lacks explicit HTTP security headers and a public security policy or vulnerability disclosure. No critical vulnerabilities or exposed sensitive data were detected. The WHOIS data aligns with the official city domain and hosting, confirming legitimacy. Overall, the site demonstrates a solid security posture appropriate for a government cultural portal. The risk assessment is low with no signs of malicious content or suspicious activity. Strategic recommendations include enhancing HTTP security headers, publishing a security policy, and considering a security.txt file to improve transparency and incident response readiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
43/ 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

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 kultur-frankfurt.de

This scan found 28 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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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
72
Security headers
15
Email security
70
DNS health
60
Network security
20
GDPR outside view
43
Average
47

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

KulturPortal Frankfurt operates as a government cultural information service under the City of Frankfurt am Main. Its market position is that of an official municipal platform, providing trusted and authoritative cultural content. The business model is non-commercial, focused on public service and cultural promotion. Revenue streams are not applicable as it is government-funded. The target audience includes local residents, tourists, cultural institutions, and event organizers. The portal benefits from partnerships with local cultural organizations and museums, as evidenced by linked domains such as museumsufer.de and kufti.de. Growth indicators include regular updates on events and press releases. The platform supports the city's cultural ecosystem by centralizing information and facilitating public engagement.

Security posture

The website exhibits a mature security posture for a government portal. HTTPS is enforced, and cookie consent is implemented in compliance with GDPR. The use of Matomo analytics respects user privacy with opt-in consent. However, the absence of HTTP security headers such as Content Security Policy (CSP), HSTS, and X-Frame-Options represents an area for improvement. No incident response contacts or security policies are publicly available, which could hinder rapid response to security incidents. No vulnerabilities or exposed sensitive data were found in the analysis. Overall, the site is secure but could benefit from enhanced security controls and transparency measures.

Recommendations

  1. Implement HTTP security headers including CSP, HSTS, and X-Frame-Options to strengthen browser security.
  2. Publish a dedicated security policy page outlining security practices and compliance.
  3. Create and host a security.txt file to facilitate vulnerability reporting and incident response.
  4. Regularly audit and update third-party libraries to mitigate potential vulnerabilities.
  5. Enhance mobile optimization and performance to improve user experience across devices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stadt Frankfurt am Main Kulturamt
Description
Official cultural portal of the city of Frankfurt am Main providing information on architecture, theater, design, film, children’s culture, art, literature, museums, music, city history, science, zoo, cultural office, and events in Frankfurt.
Key services
Cultural event listings, Information on museums and exhibitions, Cultural office news and press releases, Access to cultural programs and festivals
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.7.1, jQuery UI 1.14.1, SleekGallery jQuery plugin, Matomo Analytics, ASP.NET WebForms
Frameworks
ASP.NET WebForms
Platforms
Windows Server (implied by ASP.NET WebForms)
Performance
moderate
Mobile
basic
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • Cookie consent banner with granular options
  • No exposed sensitive data in HTML
  • Use of HTTPS
  • No vulnerable libraries detected

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
Matomo Analytics
Transparency
basic

Site quality

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

Key observations

  1. Website is an official cultural portal for Frankfurt am Main.
  2. Content is in German and well-structured with clear navigation.
  3. Cookie consent and privacy policy are implemented according to GDPR.
  4. No contact emails or phone numbers explicitly listed on the main page; contact form is available.
  5. No explicit security policy or incident response contact found.
  6. No vulnerability disclosure or security.txt detected.
  7. Uses Matomo for analytics with user consent.
  8. No advertising networks detected beyond analytics.
  9. Accessibility features included via Eye-Able scripts.
  10. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on ASP.NET WebForms, indicating a legacy but stable technology stack. It uses modern JavaScript libraries such as jQuery 3.7.1 and jQuery UI 1.14.1, along with a custom gallery plugin. Accessibility is enhanced through Eye-Able scripts, and analytics are handled by Matomo, a privacy-focused tool. The site is hosted on city-controlled nameservers, suggesting reliable hosting infrastructure. Performance is moderate with room for improvement in mobile responsiveness and loading speed. The site uses standard meta tags and SEO best practices. There is no evidence of a common CMS, indicating a custom or proprietary content management system. Technical risks include potential legacy codebase issues and missing modern security headers.
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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