BauNetz Wissen is a specialized German-language online portal providing comprehensive knowledge and resources related to architecture and construction technology. It targets professionals such as architects, planners, and engineers, offering thousands of articles, glossary terms, and building case studies. The website is well-established within its niche, supported by a strong partner network of reputable companies in the construction sector. Technically, the site employs modern web technologies including JavaScript frameworks, consent management tools, and analytics services like Hotjar and Google Tag Manager, all integrated with GDPR-compliant consent mechanisms. Hosting and security are enhanced by Cloudflare services, ensuring good performance and SSL encryption. Security posture is solid with HTTPS and consent management, though explicit security headers and incident response policies are not publicly documented. Overall, the site demonstrates high professionalism, excellent content quality, and strong trust indicators, making it a reliable resource in its industry.
Scanned ·
NIS2 and GDPR posture
GDPR outside view
28/ 100 · High
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
6 findings rated critical or high. Fix these first.
GDPR outside view
These are the privacy signals visitors and data protection authorities look for under GDPR.
Critical
EU business without adequate privacy measures
EU businesses are subject to strict GDPR requirements
What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures
High
No Cookie Policy found
GDPR requires clear information about cookie usage
What to do: Add a dedicated cookie policy explaining cookie usage and purposes
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 21 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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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
Email alerts on material changes and an exportable JSON history of every change.
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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
65
Security headers
55
Email security
70
DNS health
75
Network security
100
GDPR outside view
28
Average
66
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 baunetzwissen.de, from OffSeq Breach.
No leaked records found
Breach holds no records for baunetzwissen.de 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 portal operates under the BauNetz brand, which appears to be the parent company. The business model revolves around providing specialized content and resources for the architecture and construction industry, likely monetized through partnerships, advertising, and possibly premium content or services. The target audience includes architects, planners, and engineers primarily in Germany. The site maintains a consistent brand presence and partners with numerous industry leaders, enhancing its market position. While direct contact information is not prominently displayed in the analyzed HTML, the site offers newsletter subscriptions and maintains transparency through privacy and legal pages. The partnership ecosystem is robust, indicating strategic collaborations that support content quality and business growth.
Security posture
The website enforces HTTPS with a valid SSL configuration and integrates a consent management platform to comply with GDPR. Tracking and analytics are conducted with user consent, reflecting good privacy practices. However, the absence of explicit security headers such as Content-Security-Policy or X-Frame-Options and lack of a published security policy or incident response contact reduce the overall security maturity. No vulnerabilities or exposed sensitive data were detected in the HTML content. The use of Cloudflare nameservers suggests additional protection layers, but no WAF challenge or blocking was observed. Recommendations include adding security headers and publishing incident response information to enhance trust and readiness.
Recommendations
Implement and publish comprehensive security headers including Content-Security-Policy and X-Frame-Options.
Create and make accessible a formal security policy and incident response contact information.
Enhance transparency by providing clear company contact details on the website.
Regularly audit third-party scripts and libraries to ensure no vulnerabilities are introduced.
Maintain and update consent management to align with evolving privacy regulations.
Site observations
Automated reading of the public site. Ratings are indicative.
Business
Company
BauNetz
Description
Das einzigartige Fachportal zu Architektur und Bautechnik. Fundiertes Wissen für Architekten, Planer und Ingenieure.
JavaScript, CSS, HTML5, ConsentManager, Hotjar, Google Tag Manager, InfOnline (IOMM)
Performance
moderate
Mobile
good
Accessibility
good
SEO
good
Security
Observed score
85/100
Good practices seen
HTTPS enforced
Consent management implemented
No exposed sensitive data in HTML
Analytics and tracking
Services
Hotjar, Google Tag Manager
Tracking level
moderate
Privacy practices
good
Advertising
Tracking pixels
Hotjar
Marketing tools
ConsentManager
Transparency
good
Site quality
Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high
Key observations
Website is a professional German-language portal focused on architecture and construction technology.
Content is rich with thousands of articles, glossary terms, and building examples.
Strong partner ecosystem with reputable companies in the construction sector.
Implements GDPR-compliant consent management and privacy policies.
No direct contact emails or phone numbers found on the homepage HTML.
No explicit security or incident response policies published.
Uses modern web technologies and analytics tools with consent.
No signs of adult or questionable content.
No WAF blocking or challenge detected.
Technical notes
Notes
The website uses a modern technology stack with JavaScript, CSS, and HTML5, supported by third-party services such as ConsentManager for cookie consent, Hotjar for user behavior analytics, and Google Tag Manager for marketing tags. Hosting is via Cloudflare, providing CDN and security benefits. The site is mobile-optimized with responsive design and good accessibility features. SEO is well addressed with appropriate meta tags and Open Graph data. Performance is moderate, with preloading of key scripts and images. No explicit CMS was detected, suggesting a custom or proprietary solution. Technical risks are minimal but could be further reduced by implementing additional security headers and ensuring continuous monitoring of third-party dependencies.
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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