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Security report for duesseldorf.de

Landeshauptstadt Düsseldorf · Government · Germany

Medium risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

69/100

Risk levelMedium

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

The website www.duesseldorf.de serves as the official city portal for the Landeshauptstadt Düsseldorf, providing comprehensive information and services to residents, tourists, and businesses. It offers news, event updates, online municipal services, cultural and tourism information, and business support. The site is positioned as an authoritative government resource with a large audience and a broad range of public service offerings. Technically, the site is built on TYPO3 CMS, uses modern web technologies including Bootstrap and jQuery, and integrates analytics and accessibility tools. The website is mobile-optimized and accessible, with good SEO practices. Security posture is solid with HTTPS enforced and obfuscated contact details, though it lacks some security headers and explicit security policies. Privacy compliance is strong regarding GDPR with a comprehensive privacy policy, but no cookie consent mechanism is evident. Overall, the site is professional, trustworthy, and well-maintained, suitable for its government function.

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

4 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

    • 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

  2. 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

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

Keep watching duesseldorf.de

This scan found 23 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
67
Security headers
80
Email security
60
DNS health
65
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

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 duesseldorf.de, from OffSeq Breach.

Total records
311
Employees
0
Customers
265
Third parties
46
Weak passwords
13%

13 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for duesseldorf.de.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The site represents a large government entity focused on public service delivery and information dissemination. Its business model is non-commercial, aimed at serving citizens and visitors. The portal supports multiple sectors including tourism, culture, social services, and economic development. It maintains partnerships with local service providers and integrates external service portals. The presence of official social media channels and extensive content indicates a mature digital presence. The site supports transparency and citizen engagement through online services and livestreams. Growth indicators include active news updates and event promotion. The ecosystem includes related domains for service portals and tourism.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and no visible exposure of sensitive data. Email addresses are obfuscated to reduce spam risk. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options is a gap. There is no published security policy or incident response contact information, which could hinder transparency and trust. No vulnerability disclosure or security.txt file is present. The site uses standard CMS and libraries without known vulnerabilities. Overall, the security posture is good but could be improved with additional headers and explicit policies.

Recommendations

  1. Implement and enforce security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Add a cookie consent banner or mechanism to comply fully with privacy regulations and improve user transparency.
  3. Publish a dedicated security policy and incident response contact information to increase trust and preparedness.
  4. Consider creating a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  5. Regularly audit third-party scripts and libraries to ensure no vulnerable components are included.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Landeshauptstadt Düsseldorf
Description
Offizielles Stadtportal der Landeshauptstadt Düsseldorf. Mit Angeboten aus den Bereichen Aktuelles, Lebenssituationen, Rathaus Online, Tourismus, Kunst, Kultur, ...
Key services
News and events, Rathaus Online services, Tourism information, Cultural and social services, Business and economic development information
Content quality
excellent
Branding
consistent

Technology

Stack
TYPO3 CMS, jQuery, Bootstrap, eTracker analytics, EyeAble accessibility tool
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Obfuscated email addresses to prevent scraping

Analytics and tracking

Services
eTracker
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
eTracker
Marketing tools
eTracker
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges
  2. Content is rich, well-structured, and professionally presented
  3. Strong focus on public service and city information
  4. Multiple official social media channels linked
  5. No explicit privacy or security policy pages beyond GDPR privacy statement
  6. No visible cookie consent banner or mechanism
  7. Use of TYPO3 CMS and standard web technologies
  8. No signs of suspicious or malicious content
Technical notes

Notes

The website is built on TYPO3 CMS, a robust and widely used open-source content management system, indicating a stable and scalable infrastructure. It uses Bootstrap for responsive design and jQuery for client-side scripting. Analytics are handled by eTracker, and accessibility is enhanced with EyeAble tools. The site loads moderately fast and is mobile-optimized with good SEO metadata including Open Graph tags. The technical implementation is modern but could benefit from improved security headers and enhanced privacy controls. Hosting details are not explicit but DNS and WHOIS data indicate a reputable German hosting environment. Overall, the technical foundation supports a professional and user-friendly experience.
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

Earlier scans of this domain

  1. 69/100 −1Medium32 findingsView report
  2. 70/100Medium28 findingsView report
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