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Security report for kiwi-verlag.de

Kiepenheuer & Witsch · Media · Germany

Medium risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

73/100

Risk levelMedium

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

Kiepenheuer & Witsch is a well-established German publishing house specializing in literature and critical/popular non-fiction books since 1951. The website serves as a digital storefront and information portal for books, authors, and related publishing activities, targeting German-speaking readers and book enthusiasts. The business operates under the Holtzbrinck Publishing Group umbrella, indicating a strong market position in the media sector. Technically, the website employs modern web technologies including the Astro framework and Drupal CMS, hosted behind Cloudflare DNS services. It integrates Google Tag Manager for analytics and Usercentrics for GDPR-compliant cookie consent management, reflecting a mature digital infrastructure. The site is mobile-optimized with good SEO and accessibility features, although some accessibility aspects could be improved. From a security perspective, the site uses HTTPS with strong SSL configuration and Cloudflare protection. Security headers are partially implemented, and no critical vulnerabilities or exposed sensitive data were detected. However, the absence of a public security policy or incident response contact limits transparency. Privacy compliance is supported by a cookie consent mechanism but lacks a clearly linked privacy policy or terms of service in the analyzed content. Overall, the website presents a professional and trustworthy digital presence with moderate to high scores in content quality, technical implementation, security posture, and business credibility. Strategic improvements include publishing explicit privacy and security policies, enhancing accessibility, and adding vulnerability disclosure mechanisms to further strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
45/ 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

4 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. 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

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

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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
65
Security headers
90
Email security
75
DNS health
65
Network security
100
GDPR outside view
45
Average
73

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

Kiepenheuer & Witsch holds a strong position in the German publishing market, focusing on quality literature and non-fiction. Their business model revolves around publishing and direct book sales, supported by a digital platform that showcases authors, books, and related content. The company benefits from being part of the Holtzbrinck Publishing Group, which provides scale and resources. Their target customers are German-speaking readers interested in literary and critical works. The website's integration with social media platforms and newsletter services indicates active engagement strategies. The use of modern web technologies and compliance tools suggests a forward-looking digital strategy, although some business contact information is not openly displayed, possibly to reduce spam or direct inquiries to other channels.

Security posture

The website demonstrates a solid security posture with enforced HTTPS, Cloudflare DNS, and use of a reputable consent management platform (Usercentrics). Security headers are partially present, and no obvious vulnerabilities or sensitive data leaks were found in the HTML content. The absence of a security.txt file or public incident response contact is a gap in transparency and readiness. The site does not appear to be behind an active WAF challenge or blocking mechanism, allowing full content access. Overall, the security maturity is good for a publishing website, but improvements in explicit security policy publication and vulnerability disclosure would enhance trust and incident readiness.

Recommendations

  1. Publish a clear and accessible privacy policy and terms of service pages linked from the homepage.
  2. Implement and publicly link a security policy and incident response contact information.
  3. Add a security.txt file to facilitate vulnerability disclosures and improve transparency.
  4. Enhance accessibility features to meet higher standards for users with disabilities.
  5. Ensure all recommended security headers (e.g., X-Frame-Options, X-Content-Type-Options) are implemented and documented.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Kiepenheuer & Witsch
Description
Verlag Kiepenheuer & Witsch: Gute Literatur, kritische und populäre Sachbücher seit 1951.
Key services
Publishing books, Author and translator listings, Book sales via online shop, Newsletter subscription
Content quality
good
Branding
consistent

Technology

Stack
Cloudflare DNS, Google Tag Manager, Usercentrics Consent Management Platform, Algolia (dns-prefetch to algolia.net), Swiper.js (for sliders)
Frameworks
Astro
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Cloudflare DNS and CDN
  • Consent management via Usercentrics
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Usercentrics Consent Management Platform
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Content is focused on book publishing and author information.
  3. No direct contact emails or phone numbers found on homepage HTML.
  4. Cookie consent is managed by Usercentrics CMP.
  5. Social media presence on Facebook, Instagram, TikTok, YouTube.
  6. No explicit privacy policy or terms of service links found in provided HTML snippet.
  7. Use of modern web technologies including Astro framework and Drupal CMS.
  8. No security.txt or vulnerability disclosure found.
  9. No signs of adult or unsafe content.
  10. Domain uses Cloudflare DNS but WHOIS registrant data is not public.
Technical notes

Notes

The website uses a modern tech stack combining the Astro framework for frontend rendering and Drupal CMS for content management. Hosting is likely via Cloudflare, providing DNS and CDN services. Performance is moderate with preloading and prefetching optimizations observed. The site is mobile-optimized and uses Swiper.js for interactive sliders. Analytics and marketing tools include Google Tag Manager and Usercentrics CMP for GDPR compliance. The technical implementation is robust, though some minor improvements in accessibility and security header completeness are possible. No deprecated or vulnerable libraries were detected in the provided HTML content.
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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