Is zueblin.de Safe? Security Analysis for Ed. Züblin AG
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SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
AI Summary
Ed. Züblin AG is a leading German construction and engineering company specializing in high and civil engineering projects. The website reflects a mature enterprise with a comprehensive service portfolio including sustainable building, tunnel construction, and specialized engineering sectors. The company positions itself as the market leader in Germany with a strong focus on quality and innovation. Technically, the website leverages a legacy IBM Domino CMS backend with modern frontend technologies such as Bootstrap and jQuery, supported by privacy-conscious analytics tools like Matomo and a robust cookie consent mechanism via OneTrust. Security posture is solid with HTTPS enforced and no visible vulnerabilities, though improvements in security headers and explicit security policies are recommended. Overall, the site demonstrates good digital maturity and compliance with GDPR, supporting a trustworthy online presence.
Detected Technologies
10 urgent findings need attention
10 high
- + 2 more findings in the full report below
Keep zueblin.de under constant watch
Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.
Security drift alerts
Risk score drops, new high-severity issues, and header hardening gaps
Compliance watch
GDPR / NIS2 posture changes with governance evidence snapshots
Infrastructure surface
Unexpected open services, SSL expiry, DNS & email authentication changes
Content & tracker intelligence
Marketing tech shifts, analytics drift, and AI recommendation updates
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Security Headers
7 findings
25/100
GDPR Compliance
No critical findings yet
100/100
NIS2 Compliance
9 findings
2/100
Email Security
3 findings
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The company operates in the construction and engineering sector with a clear enterprise-scale business model. Its market position as the number one in German high and civil engineering is supported by a broad range of services and regional subsidiaries. The website's structure and domain redirects indicate a well-organized partnership and subsidiary ecosystem. The use of AWS DNS and professional branding further reinforce business credibility. The absence of direct contact emails or phone numbers on the main page suggests a controlled communication strategy, likely centralized through contact forms or legal imprint pages. The company targets expert and professional audiences, emphasizing quality and sustainability in construction projects.
Security Posture Analysis
Comprehensive Security Assessment
The website maintains a good security posture with HTTPS enforced and use of privacy-respecting analytics. Cookie consent is managed via OneTrust, indicating compliance with privacy regulations. However, the absence of explicit security headers such as Content-Security-Policy and X-Frame-Options suggests room for enhancement. No incident response or vulnerability disclosure information is publicly available, which could be improved to increase transparency and readiness. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. Overall, the security maturity is solid but could benefit from formalized policies and additional technical controls.
Strategic Recommendations
Priority Actions for Security Improvement
Implement comprehensive security headers including CSP, X-Frame-Options, and X-Content-Type-Options to mitigate common web attacks.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Ed. Züblin AG
Wir setzen Maßstäbe! Dieser Anspruch hat uns zur Nummer eins im deutschen Hoch- und Ingenieurbau gemacht. Unseren Kunden bieten wir ein umfassendes Leistungsspektrum für Bauvorhaben jeder Art und Größe.
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- Cookie consent with OneTrust
- No exposed sensitive data in HTML
- Use of privacy-focused analytics (Matomo)
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website uses IBM Domino backend (.nsf URLs) indicating enterprise-grade CMS
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing Strict-Transport-Security header
HIGHForces HTTPS connections
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended)
Missing Referrer-Policy header
LOWControls referrer information sent with requests
Missing Permissions-Policy header
MEDIUMControls browser features and APIs
Sensitive data may be cached
LOWCache-Control header should include "no-store" for sensitive pages
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
HIGHNIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
MEDIUMNIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
HIGHNIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
HIGHNIS2 requires documented incident response and business continuity plans
No business continuity planning found
MEDIUMNIS2 emphasizes operational resilience and business continuity
No security contact information
HIGHNIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
MEDIUMClear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
LOWConsider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
HIGHDetected sectors: energy, transport, health, digital
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No BIMI Record
LOWBIMI displays brand logos in email clients
No MTA-STS Policy
MEDIUMMTA-STS enforces TLS for email delivery
No TLS-RPT Record
LOWTLS-RPT provides reporting for email TLS issues
SPF Details
DKIM Selectors Found
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
HIGHServer supports weak protocols: TLSv1.1
OCSP Stapling Not Enabled
LOWOCSP stapling improves performance and privacy
Certificate Transparency Not Implemented
LOWCertificate is not logged in Certificate Transparency logs
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 53 days
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
Partial SSL/TLS Assessment
LOWCompleted 3 of 4 security checks due to time constraints
Protocol Support
OCSP Status
📊DNS Health
DNS configuration and security assessment.
DNS Health
DNS configuration and security assessment
DNSSEC Not Enabled
MEDIUMDNSSEC is not configured for this domain
CAA Records Not Configured
LOWCertificate Authority Authorization (CAA) records not found
Domain Transfer Lock Not Enabled
MEDIUMDomain can be transferred without authorization
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
Domain Registration Details
- •No domain protection locks enabled
DNS Records
DNSSEC Status
DNS Performance
SPF Analysis
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
LOWNo unnecessary services detected on common risky ports
How does zueblin.de compare?
See how zueblin.de stacks up against similar websites in the same industry.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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PDF Report & Export
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Marketing Intelligence
Contact emails, phone numbers & warm leads
Plan Comparison
| Feature | PDF Report | Marketing+ |
|---|---|---|
| Full security analysis | ||
| Professional PDF export | ||
| Email delivery | ||
| Lifetime access + unlock code | ||
| Contact emails & phones | — | |
| Marketing outreach data | — |
Already purchased?
Order summary
Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.
Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.
SEQ SIA
Lastadijas 12 k-3, Riga, Latvia, LV-1050
Reg. No. 40203410806 • VAT LV40203410806
Support: guard@offseq.com • +371 2256 5353
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