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Security report for buecherei-kalkar.de

Bücherei Kalkar · Other · Germany

Medium risk. 5 critical or high findings in Security headers, SSL/TLS and 1 other check.

Security score

55/100

Risk levelMedium

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

Bücherei Kalkar is a local community library serving Kalkar and surrounding areas in Germany, providing book and media lending services for all age groups. The website offers information about their media offerings, events, and reader login portal, positioning itself as a welcoming cultural and educational resource. The business model is focused on public service and community engagement rather than commercial profit. Technically, the website is hosted on Deutsche Telekom's homepage designer platform using cm4all CMS technology, with older but functional JavaScript libraries such as jQuery 1.7 and Prototype 1.7.3. The site is mobile-optimized and provides basic accessibility features. SEO and performance are moderate, with room for modernization. Security posture is adequate with HTTPS enforced and a cookie consent mechanism in place, but lacks advanced security headers and explicit incident response information. No vulnerabilities or exposed sensitive data were detected. Privacy compliance is good, with clear privacy and cookie policies aligned with GDPR. Overall, the website is trustworthy, professional, and safe for general audiences. Strategic improvements in security headers, updating libraries, and publishing security policies would enhance the security posture and trust further.

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

5 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 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

  3. 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 buecherei-kalkar.de

This scan found 22 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

Email alerts on material changes and an exportable JSON history of every change.

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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
75
Security headers
20
Email security
70
DNS health
60
Network security
20
GDPR outside view
83
Average
55

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

Bücherei Kalkar operates as a small, local library focused on cultural and educational services. Its competitive advantage lies in community engagement and a broad media offering including books, games, and events. The business model is non-commercial, likely funded by local government or church entities (indicated by the email domain 'bistum-muenster.de'). Target customers are local residents of all ages. The website supports growth through event promotion and digital reader login. Partnerships with the Diocese of Münster and social media presence on Facebook and Instagram support outreach. The site reflects a stable, community-oriented operation with consistent branding and clear communication.

Security posture

The website demonstrates a moderate security maturity level with HTTPS and cookie consent implemented. However, it lacks security headers such as Content-Security-Policy and X-Frame-Options, which are recommended to mitigate common web attacks. The use of older JavaScript libraries could pose risks if not regularly updated. No incident response or abuse contact information is published, which is a gap in security readiness. GDPR compliance is evident through privacy and cookie policies. No vulnerabilities or sensitive data exposure were found in the content. Overall, the security posture is adequate for a small public service website but could be improved with standard best practices.

Recommendations

  1. Implement security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Update JavaScript libraries such as jQuery to the latest stable versions to reduce vulnerability risks.
  3. Publish a dedicated security policy or incident response page including contact channels for reporting security issues.
  4. Enhance accessibility features to improve usability for all users, including those with disabilities.
  5. Regularly review and audit cookie and privacy policies to maintain GDPR compliance and transparency.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Bücherei Kalkar
Description
Buch- und Medienausleihe für alle Altersgruppen in und um Kalkar
Key services
Book lending, Media lending (DVDs, games, audiobooks, magazines), Events and readings, Reader login portal
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.7, Prototype 1.7.3, Font Awesome, cm4all widgets, Telekom Homepage Designer
Platforms
Telekom Homepage Designer CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a local library site with comprehensive content about services and events.
  2. Clear contact information including phone, email, and physical address is provided.
  3. Cookie consent and privacy policies are implemented in compliance with GDPR.
  4. No advanced security policies or incident response contacts are published.
  5. Website uses older JavaScript libraries but no known vulnerabilities detected in content.
  6. No advertising or tracking services detected beyond essential cookies.
  7. Design and navigation are user-friendly and accessible.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on the cm4all CMS platform hosted by Deutsche Telekom, utilizing legacy JavaScript libraries (jQuery 1.7, Prototype 1.7.3) and Font Awesome for icons. The site loads resources from the Telekom domain, indicating centralized hosting and design management. Performance is moderate with no major issues detected, but modernization opportunities exist by upgrading libraries and optimizing assets. Mobile optimization is good with responsive CSS. SEO is basic with meta tags and Open Graph data present but no advanced structured data like JSON-LD. Accessibility is basic with some ARIA roles and keyboard navigation hints. Overall, the technical infrastructure is stable but could benefit from modernization and enhanced security controls.
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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