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Security report for hanser-literaturverlage.de

Hanser Literaturverlage · Media · Germany

Low risk. 2 critical or high findings in SSL/TLS.

Security score

76/100

Risk levelLow

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

Hanser Literaturverlage is a well-established German publishing house specializing in literature and books across several imprints including Hanser, Hanser Kinder- und Jugendbuch, Zsolnay, Hanser Berlin, and hanserblau. The website serves as a comprehensive platform for showcasing their authors and publications, targeting German-speaking literary audiences and book buyers. The business model revolves around traditional and digital book publishing and sales, positioning Hanser as a reputable player in the German media and publishing sector. Technically, the website is built using modern web technologies such as Next.js and React, supported by cloud-based image hosting and integrated marketing and analytics tools like Emarsys and eTracker. The site demonstrates good mobile optimization, accessibility features, and SEO practices, reflecting a mature digital infrastructure. Hosting appears to be managed by Noris Network AG, a reputable provider. From a security perspective, the site enforces HTTPS, implements standard security headers, and uses cookie consent management compliant with GDPR. While no explicit security policy or vulnerability disclosure page is present, the site shows no signs of vulnerabilities or exposed sensitive data. The WHOIS data is transparent and consistent with the business identity, enhancing trustworthiness. Overall, Hanser Literaturverlage's website is professional, secure, and compliant with privacy regulations, supporting its business credibility and user trust. Strategic improvements could include publishing a dedicated security policy and vulnerability disclosure to further enhance transparency and incident response readiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 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

2 findings rated critical or high. Fix these first.

  1. 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
    • 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

Keep watching hanser-literaturverlage.de

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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
85
Email security
70
DNS health
60
Network security
100
GDPR outside view
100
Average
76

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

Hanser Literaturverlage holds a strong market position as a medium-sized German literature publisher with multiple imprints catering to diverse literary segments including children’s and youth literature. Their competitive advantage lies in their established brand, diversified publishing portfolio, and digital presence. Revenue streams primarily come from book sales and author services. The target customer segments include literary readers, book retailers, and cultural institutions within German-speaking countries. The company maintains a professional partnership ecosystem, though no explicit partner domains were identified. Growth indicators include a well-maintained website with modern technology and active marketing tools. Strategic observations suggest a focus on digital transformation and accessibility to broaden audience reach.

Security posture

The website exhibits a mature security posture with enforced HTTPS, comprehensive security headers, and GDPR-compliant cookie consent mechanisms. The integration of accessibility tools like DigiAccess indicates a commitment to inclusive security and usability. No critical vulnerabilities or exposed sensitive information were detected. However, the absence of a public security policy and vulnerability disclosure limits transparency in incident response readiness. Data protection officer contact information is provided, supporting compliance. Overall, the security culture appears proactive but could benefit from formalized public security documentation and incident response channels.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Implement a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  3. Provide explicit incident response contact channels such as security@ or abuse@ email addresses.
  4. Regularly review and audit third-party scripts and tracking tools for security and privacy compliance.
  5. Enhance transparency by detailing data retention policies and user data handling practices.

Contact details published on the site

Addresses
Legal name
Carl Hanser Verlag GmbH & Co. KG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Hanser Literaturverlage
Description
Alles rund um die Bücher und Autor:innen der Verlage Hanser, Hanser Kinder- und Jugendbuch, Zsolnay, Hanser Berlin und hanserblau.
Key services
Book publishing, Author promotion, Online book catalog and sales
Content quality
good
Branding
consistent

Technology

Stack
Next.js, React, Cloudinary (image hosting), eTracker (analytics), Emarsys (marketing automation), DigiAccess (accessibility tool), OneTrust (cookie consent)
Frameworks
Next.js
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with blocking scripts until consent
  • No exposed sensitive data in HTML
  • Use of accessibility tools

Analytics and tracking

Services
eTracker
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
eTracker, ScarabResearch
Marketing tools
Emarsys
Transparency
basic

Site quality

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

Key observations

  1. Website uses modern web technologies and frameworks.
  2. Strong focus on accessibility with DigiAccess integration.
  3. Comprehensive privacy and cookie policies with consent management.
  4. No signs of phishing, malware, or suspicious content.
  5. WHOIS data is transparent and consistent with business identity.
Technical notes

Notes

The website leverages a modern tech stack centered on Next.js and React, enabling server-side rendering and improved performance. Use of cloud services like Cloudinary for image hosting and Emarsys for marketing automation reflects a sophisticated digital infrastructure. Performance is moderate with good mobile responsiveness and accessibility features integrated. The site uses standard SEO meta tags and Open Graph data for social media optimization. Technical risks are minimal, though reliance on multiple third-party scripts necessitates ongoing security monitoring. Opportunities exist to further optimize loading times and enhance security documentation to reduce technical debt and improve operational resilience.
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

Earlier scans of this domain

  1. 76/100Low28 findingsView report
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