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Security report for stadtlindau.de

Stadt Lindau · Government · Germany

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

63/100

Risk levelMedium

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

Stadt Lindau operates as the official municipal government website for the city of Lindau (Bodensee), Germany. It provides comprehensive information and services to residents, tourists, and businesses, including administrative services, cultural events, tourism, and mobility information. The website is well-structured and professionally designed, targeting a broad audience including local citizens and visitors. The business model centers on public service and community engagement, positioning the city as a well-organized local government entity. Technically, the site uses a variety of JavaScript libraries and appears to be built on the IKISS CMS platform, with moderate performance and good mobile optimization. Security posture is adequate with HTTPS enforced, but lacks some modern security headers and explicit incident response information. Privacy compliance is partially met with a privacy policy present but no cookie consent mechanism. Overall, the site is trustworthy and professional, with clear contact information and no suspicious content detected.

Scanned

NIS2 and GDPR posture

GDPR outside view
28/ 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

6 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

    • 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

  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 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. 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 stadtlindau.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
52
Security headers
65
Email security
70
DNS health
60
Network security
100
GDPR outside view
28
Average
63

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

The website serves as a digital gateway for the city administration of Lindau, providing key services such as online citizen services, event information, and administrative contacts. Its market position is that of a local government authority, focusing on transparency and citizen engagement. The site supports multiple sectors including tourism, culture, mobility, and social services. The presence of external links to reservation and municipal information systems indicates integration with partner service providers. The business model is non-commercial, focused on public service delivery. Growth indicators include active news updates and community participation features. The partnership ecosystem includes local service providers and social media platforms for outreach.

Security posture

The website demonstrates a basic to moderate security maturity level. HTTPS is enforced, ensuring encrypted communication. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options reduces protection against common web attacks. The use of older JavaScript libraries like jQuery 1.10.2 may expose the site to known vulnerabilities if not properly patched. No incident response or vulnerability disclosure information is published, which limits transparency and readiness. No exposed sensitive data or obvious vulnerabilities were detected in the HTML content. Privacy compliance is partial, with a privacy policy present but lacking cookie consent mechanisms. Overall, the security posture is adequate for a government informational site but could be improved to meet higher standards.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against web attacks.
  2. Introduce a cookie consent mechanism to comply fully with GDPR and improve user privacy transparency.
  3. Update JavaScript libraries, especially jQuery, to the latest secure versions to mitigate known vulnerabilities.
  4. Publish explicit incident response and vulnerability disclosure policies with dedicated contact channels to improve security transparency and readiness.
  5. Conduct regular security audits and penetration testing to identify and remediate potential vulnerabilities proactively.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stadt Lindau
Description
Die Insel- und Gartenstadt Lindau ist umgeben von Wasser und Bergen. Die mittelalterliche Altstadt befindet sich auf der Insel im Bodensee, mitten im Dreiländereck Deutschland-Österreich-Schweiz. Das Stadtgebiet umfasst 3.300 Hektar mit rund 25.000 Einwohnern.
Key services
Bürgerservices, Online-Termine Bürgerbüro, Informationen zu Politik, Kultur, Tourismus, Mobilität, Stellenangebote, Verwaltungsinformationen
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.10.2, jQuery Migrate 1.2.1, jQuery UI, Mustache.js, Highslide JS, MobileDetect.js, Flexslider, mmenu
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of autocomplete with server-side endpoint for search

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. Official municipal website for Stadt Lindau (Bodensee) in Germany.
  2. Content is in German language and targets local citizens and visitors.
  3. No privacy or cookie banners detected, though privacy policy page exists.
  4. No explicit security or incident response policies published.
  5. Uses multiple JavaScript libraries, some older versions (e.g., jQuery 1.10.2).
  6. No analytics or tracking scripts detected in provided HTML.
  7. Contact information is clearly provided with official emails and phone numbers.
  8. Navigation is well structured with multi-level menus.
  9. No signs of adult or questionable content.
  10. No WAF or blocking detected; content fully accessible.
Technical notes

Notes

The website is built on a CMS platform likely IKISS, utilizing a range of JavaScript libraries including jQuery, jQuery UI, Mustache.js, and Flexslider for UI and interactivity. The site uses responsive CSS stylesheets targeting multiple screen widths, indicating good mobile optimization. Performance is moderate, with some legacy scripts that could be modernized. SEO is basic with meta tags present but no Open Graph or JSON-LD structured data detected. Accessibility features are minimal but present, such as skip links and flowtype for font scaling. Hosting details are not explicit, but DNS uses Advantic name servers, and the site is served over HTTPS. There is room for modernization and performance optimization, especially updating legacy scripts and enhancing SEO and accessibility.
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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