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Security report for cantus-riedel.de

Cantus-Riedel Berlin · Retail · Germany

High risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

43/100

Risk levelHigh

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

Cantus-Riedel Berlin is a well-established music retail business operating since 1910 in Berlin-Charlottenburg. The company offers a broad range of music-related products including sheet music, instruments, accessories, classical CDs, and merchandise. It also hosts events such as workshops and concerts, targeting musicians, composers, music teachers, and music enthusiasts. The business model combines a physical store with an online shop presence, positioning it as a trusted local retailer with a strong community focus. Technically, the website is built on WordPress using the Twenty Twelve theme, enhanced with jQuery and Matomo analytics for visitor tracking. The site is moderately optimized for performance and mobile devices, with good SEO and basic accessibility features. However, there is room for improvement in security headers and privacy compliance, particularly regarding cookie consent mechanisms. From a security perspective, the site uses HTTPS and does not expose sensitive information or vulnerable libraries. Nonetheless, it lacks explicit security policies, incident response contacts, and vulnerability disclosure mechanisms. The use of Matomo analytics without a cookie consent banner indicates partial GDPR compliance. Overall, the security posture is adequate but could be strengthened with additional best practices. The overall risk assessment is low given the nature of the business and the absence of critical vulnerabilities or suspicious indicators. Strategic recommendations include implementing security headers, adding cookie consent, publishing security and incident response policies, and maintaining regular updates to the CMS and plugins to enhance security and compliance.

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

8 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. 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';…

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

Keep watching cantus-riedel.de

This scan found 30 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

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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
62
Security headers
15
Email security
70
DNS health
60
Network security
20
GDPR outside view
28
Average
43

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

Cantus-Riedel Berlin holds a strong market position as a niche music retailer with over a century of history. Its competitive advantage lies in its extensive product range, physical presence in a prime Berlin location, and community engagement through events. The business model is retail-focused with supplementary online sales via a partner shop platform. Revenue streams likely include product sales and event hosting. The target customer segments are professional musicians, educators, and music lovers. Growth indicators include active social media presence and regular event updates. Partnerships with shop.bauer-hieber.com and musikosmos.de enhance its ecosystem. The company demonstrates stable operations with a focus on quality and customer service.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enabled and no visible critical vulnerabilities. However, the absence of security headers and lack of published security or incident response policies indicate gaps in security governance. GDPR compliance is partial due to missing cookie consent mechanisms despite use of tracking analytics. No vulnerability disclosure or security.txt files were found, limiting transparency. The business impact of these gaps is moderate given the retail nature and limited sensitive data processing. Enhancing security policies and compliance documentation would improve readiness and trust.

Recommendations

  1. Implement HTTP security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to harden the website against common attacks.
  2. Add a cookie consent banner and detailed cookie policy to ensure full GDPR compliance given the use of Matomo analytics.
  3. Publish a clear security policy and incident response contact information to improve transparency and preparedness.
  4. Regularly update WordPress core, themes, and plugins to mitigate vulnerabilities and maintain security posture.
  5. Consider adding a vulnerability disclosure policy or security.txt file to facilitate responsible reporting and enhance trust.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Cantus-Riedel Berlin
Description
Musikfachgeschäft seit 1910 in Berlin – Charlottenburg offering a wide selection of sheet music, instruments, accessories, classical CDs, music books, and merchandise. The business also hosts workshops, concerts, and readings.
Key services
Sale of sheet music, Musical instruments, Music accessories, Classical CDs and music books, Merchandise and gift items, Workshops, concerts, and readings
Content quality
good
Branding
consistent

Technology

Stack
WordPress, jQuery, Matomo Analytics
Frameworks
WordPress Twenty Twelve Theme
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Matomo
Marketing tools
Matomo Analytics
Transparency
basic

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 primarily in German with some English elements for events.
  3. No cookie consent banner or explicit cookie policy found despite use of Matomo analytics.
  4. Contact information is clearly presented including phone, email, and physical address.
  5. No forms detected on the main page; contact is via email and phone.
  6. Social media presence includes Facebook and Instagram links.
  7. Website uses WordPress CMS with a classic theme and jQuery.
  8. No security.txt or vulnerability disclosure page found.
  9. No explicit security or incident response policies published.
  10. Website content is safe and suitable for general audiences.
Technical notes

Notes

The website is built on a mature WordPress CMS platform using the Twenty Twelve theme, which is somewhat dated but functional. It uses jQuery and Matomo analytics for tracking. The site loads with moderate speed and is mobile optimized with responsive images and viewport settings. SEO is supported by proper meta tags and structured navigation. Accessibility is basic but could be improved with ARIA roles and better semantic markup. Hosting details are not explicit but the domain uses custom name servers. There is no evidence of modern frontend frameworks or CDN usage. Technical debt is moderate due to older theme usage and missing security headers. Opportunities exist to modernize the tech stack and improve performance and security.
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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