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Security report for herdt.com

HERDT-Verlag für Bildungsmedien GmbH · Education · Germany

Low risk. 2 critical or high findings in Security headers.

Security score

82/100

Risk levelLow

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

HERDT-Verlag für Bildungsmedien GmbH is an established German company specializing in IT training and educational media. Their website offers online platforms and training materials targeted at businesses, government agencies, educational institutions, and training providers. The company has a strong market presence with a domain registered since 1998 and operates multiple related domains for e-commerce and campus services. Technically, the website is built on WordPress using the Avada theme, with Cloudflare DNS and Cookiebot for privacy compliance. The site is well-optimized for SEO, mobile, and accessibility, providing a professional user experience. Security posture is good with HTTPS and cookie consent mechanisms, though some improvements like enabling DNSSEC and additional security headers are recommended. Overall, the website is trustworthy, compliant with GDPR, and suitable for its educational audience.

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

2 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 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';…

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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
100
Security headers
50
Email security
75
DNS health
80
Network security
100
GDPR outside view
88
Average
82

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 herdt.com, from OffSeq Breach.

Total records
133
Employees
0
Customers
133
Third parties
0
Weak passwords
8%

2 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 herdt.com.

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

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Technical appendix

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

Business context

Business profile

HERDT operates primarily in the education sector, focusing on IT training content and platforms. Their business model includes direct sales via online shops and educational services for a broad audience including companies and public institutions. The company leverages partnerships with related domains for specialized services like campus management and e-commerce. Their long domain history and consistent WHOIS data indicate a stable and credible business. The use of professional CMS and privacy tools reflects a mature digital presence. Growth potential lies in expanding digital training offerings and maintaining compliance with evolving privacy regulations.

Security posture

The website demonstrates a moderate to good security maturity level. HTTPS is enforced, and domain status clientTransferProhibited is set, reducing risk of unauthorized transfers. Cookie consent is managed via Cookiebot, indicating GDPR awareness. However, DNSSEC is not enabled, and no advanced security headers were detected in the provided data. No explicit security policies or incident response contacts are published, which could be improved. No vulnerabilities or exposed sensitive data were found in the analysis. Overall, the security posture is adequate for the business type but could benefit from enhanced technical controls and transparency.

Recommendations

  1. Enable DNSSEC to improve domain security and prevent DNS spoofing.
  2. Implement security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options.
  3. Publish a dedicated security policy and incident response contact information on the website.
  4. Consider adding a security.txt file to facilitate vulnerability disclosures.
  5. Regularly audit third-party scripts and plugins for vulnerabilities and update them promptly.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
HERDT-Verlag für Bildungsmedien GmbH
Description
Online-Plattformen und Schulungsunterlagen für mehr IT-Wissen bei Unternehmen, Behörden, Schulungsdienstleistern, Volkshochschulen, Schulen und Universitäten.
Key services
IT training materials, Online learning platforms, Educational publishing
Content quality
good
Branding
consistent

Technology

Stack
WordPress, PHP, Cloudflare DNS, Cookiebot, Quform plugin
Frameworks
Avada theme
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Cookie consent mechanism implemented

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Cookiebot
Marketing tools
Cookiebot consent management
Transparency
good

Site quality

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

Key observations

  1. Website uses HTTPS with valid SSL
  2. Cookie consent implemented via Cookiebot
  3. No exposed sensitive data found
  4. No security.txt or explicit security policy found
  5. WHOIS data shows long domain age and consistent registration
  6. No signs of phishing or malware
  7. Content is professional and targeted at education sector
  8. No social media links explicitly found in provided content
  9. Contact phone number provided in structured data
  10. Multiple external domains related to shop and campus services
Technical notes

Notes

The website is built on WordPress with the Avada theme and uses PHP on the backend. It employs Cloudflare for DNS services and Cookiebot for cookie consent management. The site loads multiple CSS and JS assets including Quform plugin for forms. Performance is moderate with good mobile optimization and accessibility features such as skip links and ARIA labels. SEO is supported by structured data (JSON-LD) and Open Graph metadata. The site uses HTTPS with a valid certificate. There is room for technical improvement in security headers and DNS configuration. Overall, the technical infrastructure is modern and suitable for the business needs.
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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