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Security report for hanser.de

Hanser Verlag · Other · Germany

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

68/100

Risk levelMedium

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

Hanser Verlag is a German publishing company specializing in books and media content, targeting professionals and readers interested in specialized publications. The website is built using modern web technologies including Bootstrap and Gatsby, providing a good user experience with responsive design and clear navigation. However, the site lacks explicit privacy and terms of service policies, and no direct contact information is visible in the provided content. Security posture is limited due to missing security headers and unknown SSL configuration, which should be addressed to improve trust and compliance. Overall, the website is professional and safe for general audiences but would benefit from enhanced privacy and security transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

4 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 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

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

Keep watching hanser.de

This scan found 24 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
72
Security headers
15
Email security
70
DNS health
65
Network security
100
GDPR outside view
88
Average
68

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention hanser.de, from OffSeq Breach.

Total records
43
Employees
0
Customers
43
Third parties
0
Weak passwords
14%

5 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for hanser.de.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Hanser Verlag operates in the publishing sector with a medium-sized business model focused on book and media sales. The company targets a professional audience and maintains consistent branding across its digital presence. The lack of visible contact details and privacy policies may limit user trust and engagement. There is no evidence of partnerships or subsidiaries from the provided data. The website's technical infrastructure suggests a modern approach but lacks some compliance and security best practices.

Security posture

The current security posture shows gaps including absence of security headers, unknown SSL status, and no visible incident response or vulnerability disclosure information. The presence of a cookie consent mechanism indicates some privacy awareness, but the lack of a privacy policy and terms of service reduces compliance confidence. No vulnerabilities or exposed sensitive data were detected in the analyzed content. The site should implement standard security headers, enforce HTTPS, and provide clear security and privacy documentation to improve its security maturity.

Recommendations

  1. Implement and publish a comprehensive privacy policy and terms of service.
  2. Add standard security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection.
  3. Ensure HTTPS is properly configured and enforced site-wide.
  4. Provide clear contact information including emails and phone numbers for customer and security incident reporting.
  5. Establish a vulnerability disclosure policy and incident response contact channels.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Hanser Verlag
Description
Hanser Verlag is a German publishing company specializing in books and media, targeting professionals and enthusiasts in various fields.
Key services
Book publishing, Media content
Content quality
good
Branding
consistent

Technology

Stack
Bootstrap 4.6, JavaScript, Gatsby (React-based static site generator)
Frameworks
Bootstrap
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Tracking pixels
OneTrust cookie consent
Marketing tools
OneTrust
Transparency
basic

Site quality

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

Key observations

  1. Website is accessible and not blocked by WAF or security mechanisms.
  2. No explicit privacy policy or terms of service found on the main page content.
  3. Cookie consent mechanism is implemented via OneTrust scripts.
  4. No contact emails, phone numbers, or physical addresses explicitly found in the provided HTML snippet.
  5. Website uses modern frontend technologies and Bootstrap framework.
  6. No security headers detected in the provided data; SSL status unknown.
  7. No vulnerability disclosure or incident response information found.
  8. Content is professional and safe for general audiences.
Technical notes

Notes

The website uses Bootstrap 4.6 for styling and layout, and Gatsby as a static site generator, indicating a modern and performant frontend infrastructure. The site loads cookie consent scripts from OneTrust, showing some compliance with cookie regulations. However, no CMS or backend platform is explicitly detected. Performance is moderate with good mobile optimization. Accessibility features are basic, and SEO optimization is minimal but present. Hosting provider details are not explicit but DNS uses noris.net name servers, a German hosting provider. Technical debt appears low but security and privacy implementations need improvement.
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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