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Security report for hanser-mediacenter.de

Carl Hanser Verlag GmbH & Co. KG · Media · Germany

Medium risk. 8 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

56/100

Risk levelMedium

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

The HANSER Mediacenter website serves as a comprehensive B2B media and advertising platform for the Carl Hanser Verlag GmbH & Co. KG, a reputable German publishing company. It offers detailed information on trade magazines, portals, newsletters, and advertising formats targeting specialized industrial sectors such as plastics, automotive electronics, and quality management. The site is well-positioned in the German B2B media market, providing valuable services to advertisers and industry professionals. Technically, the website leverages modern frameworks like Next.js and React, integrates with Google Tag Manager and DoubleClick for advertising, and uses Cloudinary for media assets. The hosting infrastructure appears reliable, with Noris nameservers indicating a German hosting provider. Security-wise, the site enforces HTTPS and includes some security headers, but lacks visible cookie consent mechanisms and published security policies, which are areas for improvement. Overall, the website demonstrates strong business credibility and technical maturity, with minor gaps in privacy compliance and security transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
33/ 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

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. 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 hanser-mediacenter.de

This scan found 28 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
67
Security headers
15
Email security
60
DNS health
60
Network security
100
GDPR outside view
33
Average
56

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-mediacenter.de, from OffSeq Breach.

No leaked records found

Breach holds no records for hanser-mediacenter.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

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 targets B2B customers in specialized industrial sectors, offering advertising and marketing solutions through trade media and digital portals. Its business model revolves around media publishing and advertising sales, supported by expert content marketing and webinars. The presence of multiple specialized publications and newsletters indicates a diversified revenue stream. The company maintains professional contact points and legal compliance pages, reinforcing trust. Partnerships and subsidiaries are clearly linked, showing a structured publishing group. Growth potential lies in expanding digital marketing formats and leveraging AI-related content, as indicated by the new newsletter on AI topics.

Security posture

The website maintains a good security posture with HTTPS enabled and some security headers inferred from meta tags. It uses consent settings in analytics scripts to deny storage by default, reflecting privacy-conscious design. However, the absence of a visible cookie consent banner and lack of published security or incident response policies reduce transparency and compliance confidence. No vulnerabilities or exposed sensitive data were detected in the HTML content. The site would benefit from publishing a security.txt file and incident response contacts to enhance its security maturity and stakeholder trust.

Recommendations

  1. Implement a visible and compliant cookie consent banner to meet EU cookie regulations.
  2. Publish a dedicated security policy and incident response contact information on the website.
  3. Add a security.txt file to facilitate vulnerability disclosures and improve transparency.
  4. Enhance accessibility features to comply with standards and improve user experience.
  5. Regularly audit third-party scripts and update dependencies to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Carl Hanser Verlag GmbH & Co. KG
Description
HANSER Mediacenter provides an overview of all B2B target groups, trade media, advertising formats, prices, and contacts of the Carl Hanser Verlag.
Key services
Trade magazines, Trade portals, Newsletters, Advertising formats, Marketing with expert contributions
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, DoubleClick for Publishers, eTracker, Cloudinary
Frameworks
Next.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Consent set to deny all storage types by default in Google Analytics snippet

Analytics and tracking

Services
Google Analytics (via GTM), eTracker
Tracking level
minimal
Privacy practices
basic

Advertising

Ad networks
Google DoubleClick
Tracking pixels
eTracker, Leadinfo
Transparency
basic

Site quality

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

Key observations

  1. Website is a professional B2B media and advertising platform for Carl Hanser Verlag.
  2. Content is comprehensive and well-structured with clear navigation.
  3. No signs of malicious or suspicious content.
  4. Uses modern web technologies and standard analytics/tracking tools with default consent denial.
  5. Contact information is clearly provided with multiple company emails and phone numbers.
  6. Legal pages including privacy policy, terms of service, and imprint are present and accessible.
  7. No explicit cookie consent banner detected, which may be a compliance gap.
  8. No explicit security policy or incident response contact found.
  9. No security.txt or vulnerability disclosure information found.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, enabling server-side rendering and good performance. It integrates with Google Tag Manager and DoubleClick for advertising and tracking, and uses Cloudinary for efficient media delivery. The site is mobile-optimized with responsive design and good SEO metadata. Hosting is likely provided by Noris Network, a reputable German provider. Performance is moderate with deferred loading of scripts and preloading of CSS. Accessibility is basic but could be improved. Overall, the technical infrastructure supports a professional and scalable media platform.
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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