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)
a(a) Risk analysis and security policies: Not visible from outside
b(b) Incident handling: One indicator
c(c) Business continuity, backups and crisis management: Not visible from outside
d(d) Supply chain security: Not visible from outside
e(e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
f(f) Assessing the effectiveness of security measures: Not visible from outside
g(g) Cyber hygiene and security training: Not visible from outside
h(h) Cryptography and encryption: Partly checked
i(i) HR security, access control and asset management: One indicator
j(j) Multi-factor authentication and secured communications: Not visible from outside
Partly checked
One indicator
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.
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"
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
Email alerts on material changes and an exportable JSON history of every change.
Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.
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.
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
Enable DNSSEC on the domain to improve DNS security and trust.
Implement and enforce security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
Publish a dedicated security policy and vulnerability disclosure page to enhance transparency.
Add incident response contact channels (e.g., security@ or abuse@ emails) for reporting security issues.
Regularly audit and update WordPress plugins and themes to mitigate vulnerabilities.
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
Website is a professional platform for educational construction sector in Germany.
Content is rich with articles, event information, and business contacts.
Cookie consent and privacy policies are implemented and accessible.
No signs of malicious or suspicious content.
Use of modern WordPress plugins and SEO tools.
Domain is newly registered but consistent with business launch.
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.
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