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Security report for hamburg-activecity.de

Active City Hamburg · Government · Germany

Medium risk. 5 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

58/100

Risk levelMedium

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

Active City Hamburg is a government-backed public initiative promoting sports and physical activities for all residents and visitors of Hamburg. The platform offers a comprehensive activity program, event information, and sports club details, supported by a dedicated mobile app. The website is well-branded, professionally designed, and targets a broad audience interested in an active lifestyle. Technically, the site uses modern web technologies including Vue.js and Mapbox GL JS, hosted on AWS infrastructure with S3 storage. The site is mobile-optimized and accessible, with good SEO practices. Security posture is solid with HTTPS and CSRF protections, though some security headers could be improved. Privacy compliance is strong with a clear privacy policy and cookie consent mechanism. Overall, the site is trustworthy and serves as a valuable resource for the Hamburg community.

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

5 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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  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 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
  4. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

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

Keep watching hamburg-activecity.de

This scan found 21 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
72
Security headers
95
Email security
55
DNS health
65
Network security
20
GDPR outside view
43
Average
58

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 hamburg-activecity.de, from OffSeq Breach.

Total records
11
Employees
0
Customers
11
Third parties
0
Weak passwords
0%

2 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 hamburg-activecity.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 platform positions itself as a key local government service promoting health and community engagement through sports. It leverages partnerships with local sports organizations and event hosts, providing a centralized hub for activity discovery. The business model is non-commercial, focusing on public service and community benefit. The presence of social media channels and a mobile app indicates a mature digital strategy aimed at broad user engagement. The lack of direct contact emails or phone numbers suggests reliance on web forms for communication. The platform's market position is strong within Hamburg's public sector sports promotion ecosystem.

Security posture

The website demonstrates a good security baseline with enforced HTTPS, CSRF tokens, and cookie consent. However, the absence of explicit security headers like Content-Security-Policy and X-Frame-Options is a minor gap. No vulnerabilities or exposed sensitive data were detected in the HTML content. Incident response and security policy information are not publicly available, which could be improved to enhance transparency and readiness. Overall, the security posture is adequate for a public informational site but could benefit from additional hardening and published security practices.

Recommendations

  1. Implement and verify security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish a dedicated security policy and vulnerability disclosure page to improve transparency and encourage responsible reporting.
  3. Add explicit incident response contact channels (e.g., security@ or abuse@ email addresses) to facilitate timely communication of security issues.
  4. Consider adding direct contact information such as a company phone number or email for improved user trust and support.
  5. Regularly review and update cookie consent and privacy policies to maintain compliance with evolving regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Active City Hamburg
Description
Sport und Bewegung für alle: von Aerobic bis Zumba, im Sportverein oder im Stadtpark – in der Active City finden alle das passende Angebot für sich.
Key services
Sports event information, Activity program listings, Sports club information, Mobile app for Active City, News and publications related to sports in Hamburg
Content quality
excellent
Branding
consistent

Technology

Stack
Vue.js, Mapbox GL JS, S3 storage (Amazon AWS), CSS3, JavaScript ES Modules
Frameworks
Vue.js
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • CSRF token present in meta tags
  • Cookie consent with categories and expiration
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is a public-facing sports and activity platform for Hamburg city residents and visitors.
  2. Content is multilingual with English and German support.
  3. Strong focus on accessibility and user experience.
  4. No direct contact emails or phone numbers found in HTML; contact likely via contact form.
  5. Social media presence is well integrated and uses official Hamburg Active City accounts.
  6. No signs of malware, phishing, or suspicious content.
  7. Cookie consent is implemented with categories and user choice.
  8. No explicit security.txt or vulnerability disclosure found.
  9. No explicit security policy or incident response info found.
Technical notes

Notes

The website uses a modern front-end stack centered on Vue.js with modular JavaScript and CSS assets. It integrates Mapbox GL JS for interactive maps and uses Amazon S3 for media storage, indicating scalable cloud infrastructure. The site is well-structured with preloading and modulepreload hints for performance optimization. Accessibility features such as skip navigation links and ARIA labels are present. SEO is supported by meta tags, Open Graph, and Twitter card metadata. The site is mobile responsive and uses SVG icons extensively for crisp visuals. No CMS is explicitly detected, suggesting a custom or static site generator approach. Performance is moderate, with room for further optimization.
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. 58/100Medium30 findingsView report
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