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Security report for testzentrale.de

Testzentrale · Education · Germany

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

68/100

Risk levelMedium

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

Testzentrale is a specialized platform offering psychological test procedures, books, journals, and educational services primarily targeting psychologists, researchers, and healthcare professionals. It operates under the Hogrefe Verlagsgruppe umbrella, a reputable publisher in the psychology domain, which strengthens its market position and trustworthiness. The website provides a comprehensive catalog of products and services including eTesting platforms, seminars, webinars, and consulting, catering to a professional audience in Germany and internationally. Technically, the site is built on TYPO3 CMS with modern styling frameworks like Tailwind CSS and integrates Google Tag Manager for analytics. Privacy and cookie policies are well implemented with consent management, reflecting good GDPR compliance. Security posture is strong with HTTPS enforcement, secure login forms, and standard security headers, although explicit incident response and vulnerability disclosure mechanisms are not publicly detailed. Overall, the site demonstrates a mature digital presence with good usability, security, and compliance practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

  3. 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 testzentrale.de

This scan found 25 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
42
Security headers
55
Email security
75
DNS health
65
Network security
100
GDPR outside view
68
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 testzentrale.de, from OffSeq Breach.

Total records
84
Employees
0
Customers
84
Third parties
0
Weak passwords
12%

3 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 testzentrale.de.

Select it in the checkout above.

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

The business operates in the education and healthcare sectors, focusing on psychological testing and related educational content. Its business model combines e-commerce for test materials and books with educational offerings such as seminars and consulting. The affiliation with Hogrefe Verlagsgruppe provides a competitive advantage through brand recognition and resource sharing. The website targets professionals in psychology and related fields, offering specialized products and services. The presence of multiple language versions and regional domains indicates a strategic international expansion. The company maintains a professional online presence with clear contact information and trust signals, supporting customer confidence and market credibility.

Security posture

The website exhibits a solid security foundation with HTTPS enabled and multiple security headers in place. Login forms are secured with password visibility toggles and no sensitive data is exposed in the HTML. Consent management for cookies is implemented, supporting privacy compliance. However, the absence of a public incident response contact or vulnerability disclosure policy represents a gap in security transparency and readiness. No known vulnerabilities or suspicious scripts were detected in the provided content. The security score is high but could be improved by publishing explicit security policies and enhancing monitoring capabilities.

Recommendations

  1. Publish a dedicated incident response and security contact page to improve transparency and readiness.
  2. Implement and publicize a vulnerability disclosure or security.txt file to encourage responsible reporting.
  3. Regularly review and update third-party scripts and libraries to mitigate potential vulnerabilities.
  4. Enhance security headers with additional directives such as Referrer-Policy and Permissions-Policy.
  5. Consider multi-factor authentication for user accounts to strengthen login security.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Testzentrale
Description
Bei uns finden Sie Testverfahren, Bücher und Zeitschriften rund um das Thema Psychologie sowie weiterführende Angebote!
Key services
Psychological test procedures, Books and journals, eTesting platforms, Academy seminars and webinars, Consulting services
Content quality
good
Branding
consistent

Technology

Stack
TYPO3 CMS, Google Tag Manager, Consentmanager.net, Tailwind CSS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure login forms with password toggle
  • Consent management for cookies
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Consentmanager.net
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented and focused on psychology-related products and services.
  3. Strong affiliation with Hogrefe Verlagsgruppe, a known publisher in psychology.
  4. Good privacy and cookie policy presence with consent management.
  5. Secure login forms and HTTPS usage observed.
  6. No explicit security incident response or vulnerability disclosure found.
  7. Multiple language and regional versions linked, indicating international presence.
  8. Use of modern CMS TYPO3 and Tailwind CSS for styling.
  9. Google Tag Manager used for analytics and tracking.
Technical notes

Notes

The website is built on TYPO3 CMS, a robust and widely used content management system, combined with Tailwind CSS for responsive and modern design. Google Tag Manager is used for analytics and tracking, integrated with a consent management platform to comply with privacy regulations. The site demonstrates good mobile optimization and accessibility features. Performance is moderate, with potential for improvement through optimization of assets and caching strategies. The technical infrastructure supports a professional and scalable online presence, though hosting provider details were not explicitly identified. Overall, the technical implementation aligns well with the business needs and user expectations.
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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