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Security report for schulbau.online

Cubus Medien Verlag GmbH · Education · Germany

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

59/100

Risk levelMedium

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

SCHULBAU.online is a professional German platform focused on educational construction, offering a magazine, trade fairs, and events targeting architects, school authorities, and planners. The business is operated by Cubus Medien Verlag GmbH, a medium-sized company based in Hamburg, Germany, founded in 2025. The website is built on WordPress with modern plugins and SEO tools, providing a good user experience with clear navigation and mobile optimization. Security posture is solid with HTTPS and cookie consent mechanisms, though DNSSEC is not enabled and security headers could be improved. Privacy compliance is strong with accessible privacy and cookie policies. Overall, the site is trustworthy and well-positioned in its niche.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

5 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. 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. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

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

Keep watching schulbau.online

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

€25per month

  • 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
15
Email security
65
DNS health
70
Network security
20
GDPR outside view
85
Average
59

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 schulbau.online, from OffSeq Breach.

No leaked records found

Breach holds no records for schulbau.online 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 company operates in the education and media sectors, focusing on educational infrastructure and related events. Its business model includes content publishing, event organization, and advertising. The platform serves a specialized audience of professionals in educational construction, offering industry news, event participation, and networking opportunities. Partnerships with regional institutions and event platforms enhance its market presence. The domain age aligns with the company's founding year, indicating a new but credible venture.

Security posture

The website uses HTTPS and employs cookie consent management via Complianz, indicating awareness of GDPR requirements. However, DNSSEC is not enabled, which is a minor security gap. No explicit security policy or incident response contacts are published. Security headers are not explicitly visible in the HTML content, suggesting room for improvement. No vulnerabilities or exposed sensitive data were detected. The security score is good but could be enhanced by implementing DNSSEC and security headers.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and trust.
  2. Implement and enforce security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish a dedicated security policy and vulnerability disclosure page to enhance transparency.
  4. Add incident response contact channels (e.g., security@ or abuse@ emails) for reporting security issues.
  5. Regularly audit and update WordPress plugins and themes to mitigate vulnerabilities.

Contact details published on the site

Addresses
Legal name
Cubus Medien Verlag GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Cubus Medien Verlag GmbH
Description
Führende Plattform für Bildungsbau mit Magazin und Messeangeboten für Architekt:innen, Schulträger und Planende von Kita bis Campus.
Key services
Educational construction news and insights, Trade fairs and conferences (SCHULBAU Messe), Magazine publication, Workshops and think tanks
Content quality
good
Branding
consistent

Technology

Stack
WordPress 6.8.2, PHP, WooCommerce, Events Calendar Pro, Rank Math SEO, Google Tag Manager, Complianz GDPR plugin, Bricks theme, jQuery
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • Cookie consent banner implemented
  • No exposed sensitive data in HTML
  • Use of security and privacy plugins (Complianz)

Analytics and tracking

Services
Google Analytics via Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Advanced Ads
Marketing tools
Rank Math SEO, WooCommerce Payments
Transparency
good

Site quality

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

Key observations

  1. Website is a professional platform for educational construction sector in Germany.
  2. Content is rich with articles, event information, and business contacts.
  3. Cookie consent and privacy policies are implemented and accessible.
  4. No signs of malicious or suspicious content.
  5. Use of modern WordPress plugins and SEO tools.
  6. Domain is newly registered but consistent with business launch.
  7. No security.txt or explicit security policy found.
Technical notes

Notes

The website is built on WordPress 6.8.2 with a modern tech stack including WooCommerce, Events Calendar Pro, and Rank Math SEO. It uses Google Tag Manager for analytics and Advanced Ads for advertising management. The site is hosted by Cronon GmbH and uses a custom Bricks theme with good mobile responsiveness and SEO optimization. Performance is moderate, with lazy loading and responsive images implemented. Accessibility is basic but present. The site uses multiple CSS and JS libraries, including jQuery and WooCommerce scripts. Overall, the technical infrastructure is solid with opportunities for performance and security enhancements.
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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