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Security report for zvon.de

Zweckverband Verkehrsverbund Oberlausitz-Niederschlesien · Transportation · Germany

High risk. 8 critical or high findings in Network security, Security headers and 2 other checks.

Security score

49/100

Risk levelHigh

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

Zweckverband Verkehrsverbund Oberlausitz-Niederschlesien (ZVON) operates a regional public transportation portal serving the Oberlausitz and Niederschlesien regions in Germany. The website provides comprehensive information on public transit schedules, ticketing, network maps, and current service updates, targeting local commuters and travelers. The business model centers on facilitating access to public transport services and enhancing user experience through digital tools such as real-time departure monitors and fare calculators. The organization holds a solid regional market position as a trusted mobility service provider.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

8 findings rated critical or high. Fix these first.

  1. Network security

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

    • Critical

      Critical Service Exposed: SMB

      Port 445 (SMB) is publicly accessible - SMB - Windows file sharing, high risk

      What to do: Immediately restrict access to SMB using firewall or VPN

      • 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
    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • 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
  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 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';…
  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

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

Keep watching zvon.de

This scan found 25 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
65
Email security
55
DNS health
65
Network security
0
GDPR outside view
85
Average
57
After the cap
49

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 · found on this site
  • 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 zvon.de, from OffSeq Breach.

Total records
12
Employees
0
Customers
12
Third parties
0
Weak passwords
83%

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 zvon.de.

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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

ZVON's website reflects a well-established regional transportation authority with a focus on public transit users including occasional riders, commuters, and groups. The portal supports strategic mobility planning and customer engagement through detailed service information and interactive features. Partnerships with technology providers like Adobe and Google enhance service delivery. The presence of social media channels and accessibility features indicates a customer-centric approach. The business operates in the transportation sector within Germany, likely as a medium-sized public entity or consortium.

Security posture

The website demonstrates a mature security posture with HTTPS enforced, session management via secure cookies, and CSRF protection tokens. A comprehensive privacy center allows granular user consent management, aligning with GDPR requirements. Use of Google Tag Manager and Analytics is consent-based with anonymized IP tracking. However, explicit security headers such as X-Frame-Options and X-Content-Type-Options are not clearly identified and could be improved. No vulnerabilities or exposed sensitive data were detected. Incident response and security policy documentation are not publicly available, representing an area for enhancement.

Recommendations

  1. Implement and explicitly declare security headers like X-Frame-Options and X-Content-Type-Options to strengthen browser security.
  2. Publish a dedicated security policy and provide clear incident response contact channels to improve transparency and readiness.
  3. Consider adding a security.txt file to facilitate responsible vulnerability disclosure.
  4. Regularly audit third-party scripts and dependencies to mitigate supply chain risks.
  5. Enhance data retention disclosures and user education on privacy settings to further GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Zweckverband Verkehrsverbund Oberlausitz-Niederschlesien
Description
Alle Infos rund um den Öffentlichen Nahverkehr in Ostsachsen und darüber hinaus - Zweckverband Verkehrsverbund Oberlausitz-Niederschlesien.
Key services
Fahrplanauskunft, Abfahrtsmonitor, Ticketverkauf und Tarifinformationen, Informationen zu Liniennetz und Freizeitangeboten, Kundendienst und Kontaktmöglichkeiten
Content quality
good
Branding
consistent

Technology

Stack
Contao CMS, Bootstrap, JavaScript, Google Tag Manager, Google Analytics, Adobe Fonts Typekit, Mmenu (mobile menu), Swipe.js
Frameworks
Contao Open Source CMS, Bootstrap
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • Use of HTTPS with anonymized IP in Google Analytics
  • Session cookies with secure purpose
  • CSRF token cookie for security
  • Privacy Center with granular cookie consent
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google DoubleClick
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented and relevant to public transportation in Oberlausitz-Niederschlesien.
  3. Comprehensive privacy and cookie consent mechanisms are implemented.
  4. Use of modern web technologies and CMS (Contao) with responsive design.
  5. Security best practices are followed, though some security headers could be explicitly confirmed.
  6. No evidence of suspicious or malicious content or domains.
  7. Social media presence on Facebook and Instagram is linked.
  8. WHOIS data supports legitimacy and consistency with business claims.
Technical notes

Notes

The website is built on the Contao Open Source CMS platform, leveraging Bootstrap for responsive design and modern JavaScript libraries such as Swipe.js and Mmenu for enhanced user experience. Integration with Google Tag Manager and Analytics supports data-driven insights while respecting user privacy through consent mechanisms. The site is mobile-optimized with good accessibility features including contrast and motion toggles. Performance is moderate, with potential for optimization in loading times. The technical infrastructure appears stable and well-maintained, suitable for a regional public service portal.
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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