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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 public service initiative focused on promoting sports and physical activities for all citizens in Hamburg. The platform offers a wide range of services including activity programs, event information, and a dedicated mobile app to engage the community in active lifestyles. It is positioned as a government-backed project with a strong local presence and social media engagement. Technically, the website employs modern frontend technologies such as Vue.js and Mapbox for interactive maps, hosted on Amazon S3 storage, ensuring good performance and mobile optimization. Security posture is solid with HTTPS enforcement and cookie consent mechanisms, although some HTTP security headers and incident response policies are not explicitly published. Overall, the site is professional, trustworthy, and compliant with GDPR requirements, serving a broad audience interested in sports and community events in Hamburg.

Scanned

This is an earlier scan of hamburg-activecity.de. View the latest report

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.

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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
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 business model is centered on public service and community engagement, likely funded by local government and sports organizations. The platform targets a diverse audience including kids, youths, adults, and seniors interested in sports activities. It leverages partnerships with local sports clubs and event organizers, enhancing its market position as a key promoter of active lifestyles in Hamburg. The website's content and services are well curated, with a focus on accessibility and inclusivity. Growth indicators include active event promotion and a mobile app presence. The partnership ecosystem includes official Hamburg city websites and local sports entities. Strategic observations suggest continued investment in digital engagement and community outreach.

Security posture

The website demonstrates a mature security posture with HTTPS enabled and CSRF tokens implemented. Cookie consent is managed via a detailed consent dialog, supporting GDPR compliance. However, the absence of explicit security policies, incident response contacts, and security.txt files indicates room for improvement in transparency and readiness. No vulnerable libraries or exposed sensitive data were detected. Security headers such as Content Security Policy and HSTS are not evident from the provided data, which could enhance protection against common web attacks. Overall, the security posture is good but could be strengthened with additional best practices and published policies.

Recommendations

  1. Implement and enforce HTTP security headers including CSP, HSTS, X-Frame-Options, and X-Content-Type-Options to enhance web security.
  2. Publish a clear security policy and incident response contact information to improve transparency and readiness.
  3. Add a security.txt file to facilitate vulnerability disclosure and responsible reporting.
  4. Consider adding direct company contact emails and phone numbers on the website for improved user trust and support.
  5. Regularly audit third-party scripts and dependencies to ensure no vulnerabilities or outdated libraries are present.

Contact details published on the site

Addresses
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
Activity program listings, Event information, Active City App, Sports funding information, Publications and reports
Content quality
good
Branding
consistent

Technology

Stack
Vue.js, Mapbox GL JS, S3 storage, JavaScript ES modules
Frameworks
Vue.js
Platforms
Amazon S3 (storage)
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • CSRF token present in meta tags
  • Cookie consent mechanism implemented

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is a public service platform promoting sports and physical activity in Hamburg.
  2. Content is well structured and multilingual (German and English).
  3. Strong social media presence with official channels.
  4. Cookie consent and privacy policy are implemented and accessible.
  5. No direct contact emails or phone numbers found on homepage; contact likely via dedicated contact page.
  6. No explicit security policy or incident response contacts published.
  7. Modern frontend technology stack with Vue.js and Mapbox integration.
  8. No signs of malicious or suspicious content.
  9. No advertising or tracking networks detected beyond basic analytics.
Technical notes

Notes

The website uses a modern technology stack centered on Vue.js for frontend SPA functionality and Mapbox GL JS for interactive mapping features. Static assets and media are served via Amazon S3, indicating a scalable and reliable hosting infrastructure. The site is well optimized for performance and mobile devices, with preloading and modulepreload directives for efficient resource loading. Accessibility features such as skip navigation links and ARIA labels are implemented, enhancing usability. SEO is supported by proper meta tags, Open Graph, and Twitter card metadata. No CMS is explicitly detected, suggesting a custom or headless architecture. Overall, the technical infrastructure is robust, modern, and well maintained.
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. 58/100Medium29 findingsView report
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