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Security report for taxmaster.de

Taxmaster · Education · Germany

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

Security score

75/100

Risk levelMedium

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

Taxmaster.de is an educational website focused on providing a Master of Taxation degree and tax consultancy training in Germany. The site targets students and professionals interested in taxation, offering dual qualifications. The business operates in the education sector with a niche focus on taxation studies. The website is built on TYPO3 CMS and integrates modern technologies such as Google reCAPTCHA, Cookiebot for consent management, and Google Tag Manager for analytics. The technical infrastructure is solid with good mobile optimization and moderate performance. Security posture is adequate with HTTPS enforced and consent mechanisms in place, though some security headers and explicit policies could be improved. Privacy compliance is strong, with comprehensive cookie policies and GDPR adherence. Overall, the site is professional, trustworthy, and well-positioned within its market niche.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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 taxmaster.de

This scan found 20 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.

Daily monitoring

Recommended

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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
82
Security headers
25
Email security
85
DNS health
60
Network security
100
GDPR outside view
95
Average
75

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 taxmaster.de, from OffSeq Breach.

No leaked records found

Breach holds no records for taxmaster.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

Taxmaster operates as a specialized educational provider in Germany, focusing on taxation and tax consultancy degrees. The business model revolves around academic training and certification, targeting a specific audience of students and tax professionals. The website reflects a consistent brand and offers clear information about its programs. The presence of multiple advertising and tracking services indicates a marketing strategy aimed at audience engagement and lead generation. The company leverages partnerships with major ad networks and analytics providers to optimize outreach. No parent or subsidiary companies are identified, suggesting an independent operation. The business maintains a good reputation with trust signals such as cookie consent and security measures.

Security posture

The website demonstrates a moderate to good security maturity level. HTTPS is enforced, and Google reCAPTCHA is used to protect forms from abuse. Cookie consent is managed via Cookiebot, ensuring GDPR compliance. However, explicit security headers like Content-Security-Policy and X-Frame-Options are not clearly present, which could enhance protection against common web attacks. No vulnerabilities or exposed sensitive data were detected in the analysis. Incident response and security policies are not publicly available, which is a gap in transparency and preparedness. Overall, the security posture is adequate for the business type but could benefit from formalized policies and additional header configurations.

Recommendations

  1. Implement and publish a security.txt file to facilitate vulnerability reporting.
  2. Add explicit Content-Security-Policy and other security headers to strengthen defenses.
  3. Publish clear incident response and security policies accessible to users.
  4. Enhance accessibility features to improve compliance and user experience.
  5. Provide clear and verified contact information for business and security inquiries.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Taxmaster
Description
Master of Taxation & Steuerberater: Ein Studiengang, zwei Abschlüsse
Key services
Master of Arts in Taxation, Steuerberater (Tax Consultant) training
Content quality
good
Branding
consistent

Technology

Stack
TYPO3 CMS, Google reCAPTCHA, Cookiebot, Google Tag Manager, Econda analytics, Elfsight widgets
Frameworks
TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA
  • Cookie consent management via Cookiebot

Analytics and tracking

Services
Google Analytics, Econda, Hotjar
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Meta Platforms, Inc., Amazon Advertising, Criteo
Tracking pixels
Hotjar, Econda, Cookiebot, Facebook Pixel
Marketing tools
Cookiebot, Elfsight widgets
Transparency
good

Site quality

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

Key observations

  1. Website uses TYPO3 CMS with modern consent management and analytics tools.
  2. Comprehensive cookie consent mechanism via Cookiebot is implemented.
  3. No explicit contact information or security policies published on the site.
  4. Advertising and tracking are extensive but managed with user consent.
  5. No signs of WAF or content blocking detected.
  6. Content is professional and targeted at education in taxation.
Technical notes

Notes

The website is powered by TYPO3 CMS, a robust and widely used content management system. It uses modern JavaScript modules and integrates third-party services such as Google Analytics, Cookiebot, and Elfsight widgets. The site is mobile-optimized and includes preloading of fonts and CSS for performance. However, some opportunities exist to improve accessibility and SEO further. Hosting provider details are not explicitly identified. The site performs moderately well but could benefit from performance tuning and enhanced security header implementation. Overall, the technical infrastructure supports the business needs effectively with room for modernization.
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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