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Security report for linz.at

Stadt Linz · Government · Austria

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

Security score

77/100

Risk levelLow

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

Stadt Linz operates as the official municipal government website for the city of Linz, Austria, providing a broad range of public services, cultural information, and digital tools for citizens and visitors. The website serves as a comprehensive portal for city life, politics, administration, and tourism, positioning itself as a trusted and authoritative source for local information. The site targets residents, tourists, and stakeholders interested in city services and events. Technically, the website employs modern web technologies including HTML5, CSS3, JavaScript, and popular libraries such as Owl Carousel and Matomo Analytics for user tracking with privacy compliance. The site is mobile-optimized, accessible, and SEO-friendly, with a clear navigation structure and professional design. Cookie consent is managed via Klaro, ensuring GDPR compliance. From a security perspective, the site enforces HTTPS and uses cookie consent mechanisms to protect user privacy. However, explicit security headers are not detected in the HTML content, and no published security or incident response policies are found. No vulnerabilities or exposed sensitive data were identified, indicating a solid security posture for a government website. Overall, Stadt Linz's website demonstrates a high level of professionalism, trustworthiness, and compliance with privacy regulations. The lack of WHOIS data is likely due to privacy protection, which is justified for government domains. Strategic improvements could include adding security headers and publishing a vulnerability disclosure policy to enhance transparency and security readiness.

Scanned

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 linz.at

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.

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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
50
Email security
83
DNS health
75
Network security
100
GDPR outside view
83
Average
77

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

Technical appendix

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

Business context

Business profile

Stadt Linz holds a strong market position as the official digital gateway for the city government, offering extensive services that include administrative processes, social support, event information, and tourism promotion. The business model is public sector focused, funded by municipal resources, and aimed at maximizing citizen engagement and service efficiency. The website integrates with partner domains such as linztourismus.at and ki.linz.at, indicating a collaborative ecosystem. Growth indicators include digital service adoption and active social media presence. The site’s comprehensive content and user-friendly design support its role as a central information hub.

Security posture

The website exhibits a mature security posture with mandatory HTTPS encryption and a robust cookie consent framework ensuring GDPR compliance. No critical vulnerabilities or exposed sensitive data were found. However, the absence of explicit security headers like Content-Security-Policy and X-Frame-Options suggests room for improvement. No public incident response or security policy is published, which could limit transparency and preparedness. The use of Matomo analytics with disabled cookies reflects a privacy-conscious approach. Overall, the security culture appears adequate for a government site but could benefit from enhanced security controls and published policies.

Recommendations

  1. Implement standard security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web attacks.
  2. Publish a formal security policy and incident response contact information to improve transparency and readiness.
  3. Add a security.txt file to facilitate responsible vulnerability disclosure and engagement with security researchers.
  4. Regularly audit and update third-party scripts and libraries to prevent vulnerabilities.
  5. Enhance monitoring and validation of form inputs to prevent injection and other input-based attacks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stadt Linz
Description
Die Stadt Linz im Internet. Vielfältige Informationen zu Services und Dienstleistungen der Verwaltung, zu Kulturangebot, Wirtschaft, Umwelt und vielem mehr.
Key services
Service A-Z, Digitale Services und Online-Termine, Informationen zu Stadtleben, Politik, Verwaltung, Tourismusinformationen, Aktuelle Meldungen und Veranstaltungen
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Owl Carousel, Matomo Analytics, Klaro Cookie Consent
Frameworks
Bootstrap (implied by classes and dropdowns)
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced (implied by canonical URL and links)
  • Cookie consent banner with granular control
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected in scripts

Analytics and tracking

Services
Matomo
Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Matomo Analytics
Marketing tools
Matomo Analytics, Klaro Cookie Consent
Transparency
good

Site quality

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

Key observations

  1. Official city government website for Linz, Austria
  2. Comprehensive service and event information
  3. Strong privacy and cookie consent implementation
  4. No WHOIS data available publicly, likely due to privacy protection
  5. No security headers detected in HTML but HTTPS enforced
  6. Use of Matomo analytics with cookie consent
  7. Multiple social media official channels linked
  8. No signs of malicious or adult content
  9. Good mobile and accessibility support
Technical notes

Notes

The website is built on a modern and responsive front-end stack using HTML5, CSS3, and JavaScript with libraries such as Owl Carousel for UI components and Matomo for analytics. The presence of Bootstrap-like classes suggests use of a responsive framework. Performance is moderate with lazy loading of images and asynchronous script loading. Accessibility features such as skip links and ARIA labels are implemented, supporting inclusive design. SEO is well addressed with meta tags, Open Graph, and JSON-LD structured data. No CMS or hosting provider details are explicitly detected. Overall, the technical implementation is solid with opportunities for further optimization and security hardening.
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. 42/100High26 findingsView report
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