Skip to main content

Security report for gelsenkirchen.de

Stadt Gelsenkirchen · Government · Germany

Low risk. 2 critical or high findings in Security headers and SSL/TLS.

Security score

79/100

Risk levelLow

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

The website www.gelsenkirchen.de serves as the official municipal portal for the city of Gelsenkirchen, Germany. It provides comprehensive information about city services, cultural events, education, tourism, and citizen engagement. The site targets residents, visitors, and businesses, offering a broad range of online services and information relevant to the local community. The business model is typical for a government entity, focusing on public service delivery and information dissemination. Technically, the website employs a modern tech stack including jQuery, Leaflet for mapping, Bootstrap grid for layout, and Klaro for cookie consent management. It is built on an ASP.NET WebForms framework, indicating a mature but somewhat traditional infrastructure. The site is mobile-optimized and accessible, with good SEO practices and structured navigation. From a security perspective, the site uses HTTPS and implements a cookie consent mechanism, which are positive indicators. However, it lacks explicit security headers, a published security policy, vulnerability disclosure information, and a clearly stated privacy policy. No critical vulnerabilities or exposed sensitive data were detected. The WHOIS data aligns well with the official city entity, supporting legitimacy and trust. Overall, the website is professional, trustworthy, and safe for general audiences. It could improve its privacy compliance and security posture by publishing relevant policies and enhancing HTTP security headers. These improvements would strengthen user trust and regulatory compliance.

Scanned

This is an earlier scan of gelsenkirchen.de. View the latest report

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
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

2 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. 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 gelsenkirchen.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

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. See sample alerts.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
60
Email security
83
DNS health
75
Network security
100
GDPR outside view
83
Average
79

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 gelsenkirchen.de, from OffSeq Breach.

Total records
247
Employees
2
Customers
245
Third parties
0
Weak passwords
4%

Latest record dated 2025-04-15 · 14 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 gelsenkirchen.de.

Select it in the checkout above.

Masked preview

  • –intranet.gelsenkirchen.de2025-04-15
  • –mail.gelsenkirchen.de2025-04-14

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

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

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

Business context

Business profile

Gelsenkirchen's official city website positions itself as a central hub for municipal information and services. It leverages its government status to provide authoritative content and digital services to residents and visitors. The site supports citizen engagement through information on politics, social services, education, and cultural activities. Its partnership ecosystem includes local service portals and tourism sites, enhancing its service breadth. The business model is non-commercial, focused on public administration and community support. Growth indicators include digital service expansion and pilot projects like AI assistance in citizen services. The site maintains a strong local market position as the primary digital interface for city governance and community interaction.

Security posture

The website demonstrates a moderate security maturity level. HTTPS is enforced, and a cookie consent manager is implemented, indicating awareness of privacy and security requirements. However, the absence of security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces the overall security posture. There is no visible vulnerability disclosure policy or security.txt file, which limits transparency and incident response readiness. No exposed credentials or vulnerable libraries were detected in the provided content. The site lacks explicit data protection officer contact information and detailed privacy policies, which are important for GDPR compliance. Overall, the security posture is adequate for a government site but could be significantly improved with standard best practices and transparency measures.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service prominently on the website.
  2. Implement and configure HTTP security headers including CSP, HSTS, X-Frame-Options, and X-Content-Type-Options.
  3. Create and publish a vulnerability disclosure policy and security.txt file to enhance transparency and incident response.
  4. Provide clear contact information for the Data Protection Officer to improve GDPR compliance.
  5. Regularly audit and update third-party libraries and scripts to ensure no vulnerabilities are introduced.

Contact details published on the site

Addresses
Legal name
Stadt Gelsenkirchen
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stadt Gelsenkirchen
Description
Die Stadt Gelsenkirchen informiert über das Dienstleistungsabgebot sowie über Wirtschaft, Bildung, Tourismus, Kultur und das Leben in Gelsenkirchen.
Key services
Information about city services, Online service portal, Tourism information, Cultural events and news, Citizen participation and engagement, Job and career information
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Leaflet (maps), Bootstrap Grid, Klaro (cookie consent manager), ASP.NET WebForms
Frameworks
ASP.NET
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is an official municipal government portal for Gelsenkirchen, Germany
  2. Content is comprehensive, covering city services, culture, education, and citizen engagement
  3. Uses modern web technologies and includes a cookie consent manager
  4. Contact information is clearly provided with official email and phone
  5. No signs of blocking or WAF challenges
  6. No explicit privacy policy or terms of service found in the provided content
  7. No security.txt or vulnerability disclosure information found
  8. No analytics or tracking scripts detected in the provided content
  9. Website is safe for general audiences with no adult or questionable content
Technical notes

Notes

The website is built on ASP.NET WebForms, a mature but somewhat legacy framework, combined with modern JavaScript libraries such as jQuery and Leaflet for interactive maps. The use of Klaro for cookie consent indicates attention to privacy compliance. The site includes responsive design elements and accessibility features, contributing to a good user experience across devices. Performance appears moderate, with no explicit indicators of slow loading but some potential for optimization. The technical stack is stable but could benefit from modernization to newer frameworks and enhanced security configurations. No CMS brand was explicitly detected, suggesting a custom or proprietary solution. Hosting provider details were not available from the provided data.
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. 79/100Low27 findingsView report
Reviews of this site

Share your experience with gelsenkirchen.de. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review gelsenkirchen.de.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.