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Security report for randbuch.info

Other · N/a

Medium risk. 9 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

57/100

Risk levelMedium

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

Randbuch.info is a specialized online antiquarian bookshop focusing on rare, curious, and forgotten books, brochures, newspapers, and documents, particularly those not indexed by major search engines. The website offers a broad catalog spanning numerous academic and historical categories, targeting collectors, researchers, and enthusiasts interested in niche literature, especially related to the Baltic region. The business operates with a small-scale model, emphasizing a curated selection of rare items. Technically, the website uses a custom-built platform with jQuery, Google Analytics, and Cloudflare DNS services. The design is functional and mobile responsive, providing good navigation and search capabilities. However, the site lacks modern CMS features and advanced SEO or accessibility implementations. Security-wise, the domain is well-registered with standard domain locks but lacks DNSSEC and explicit security headers. No cookie consent or privacy policy beyond basic terms is present, indicating limited GDPR compliance. Overall, the site is trustworthy but could improve its security and privacy posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 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

9 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. GDPR outside view

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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

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

Keep watching randbuch.info

This scan found 26 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
42
Security headers
20
Email security
70
DNS health
75
Network security
100
GDPR outside view
35
Average
57

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 occupies a niche market in antiquarian book retail, focusing on rare and specialized literature. Its competitive advantage lies in the extensive categorization and availability of obscure documents not commonly found online. Revenue likely derives from direct sales of physical books and digital documents. The target customers are collectors, historians, and academics. The partnership ecosystem includes related cultural and art sites, enhancing its market reach. The business has been operational since 2012, indicating stability but remains small in scale. Growth opportunities exist in expanding digital offerings and improving compliance and security to build customer trust.

Security posture

The security maturity level is moderate. The domain is protected with registrar locks but lacks DNSSEC, which could mitigate DNS spoofing risks. No security headers were detected, and no incident response or security policy is published. The absence of cookie consent and GDPR compliance indicators is a compliance gap. Google Analytics is used without visible privacy controls, increasing privacy risk. No critical vulnerabilities or malware indicators were found. The business should prioritize implementing security headers, DNSSEC, and privacy compliance measures to reduce risk and improve customer trust.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS security.
  2. Implement standard security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Add a cookie consent banner and detailed privacy policy to comply with GDPR.
  4. Publish a security policy and provide incident response contact information.
  5. Improve SEO and accessibility features to enhance user experience and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
An antiquarian bookshop website specializing in rare, curious, and forgotten books, brochures, newspapers, and documents, especially those not indexed by Google or widely available online. It offers a large catalog of books across diverse categories including history, botany, zoology, geography, medicine, religion, technology, and more.
Key services
Sale of rare and obscure books, Digital documents (ebooks), Categorized browsing and search functionality
Content quality
good
Branding
moderate

Technology

Stack
jQuery, Google Analytics, Remixicon fonts, ImageLightbox
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
55/100
Good practices seen
  • Domain status includes clientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website offers a large catalog of rare and specialized books with detailed categorization
  2. Contact information is clearly provided with email and phone numbers
  3. No privacy or cookie policy explicitly found except terms and conditions page
  4. No security policy or incident response information available
  5. No DNSSEC enabled, which is a minor security gap
  6. Uses Cloudflare DNS but no evidence of Cloudflare WAF blocking
  7. Google Analytics is used for tracking without visible cookie consent
  8. Website is in German language targeting German-speaking collectors and researchers
  9. Mobile responsive design with good navigation and search features
Technical notes

Notes

The website uses a custom-built platform with jQuery and Google Analytics for tracking. It leverages Cloudflare for DNS but does not use DNSSEC. The site is mobile responsive with a clear navigation structure and categorized content. Performance is moderate, with no advanced frameworks or CMS detected. The use of Google Fonts and icon fonts enhances design. However, the lack of modern CMS or frameworks may limit scalability and maintainability. Security features are minimal, and privacy compliance is weak. Technical debt includes missing security headers and lack of cookie consent mechanisms.
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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