Is dup-kn.de Safe? Security Analysis for Doser + Partner Baugesellschaft mbH
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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
Doser + Partner Baugesellschaft mbH is a well-established real estate company based in Konstanz, Germany, with over 30 years of experience in project development, new construction, renovation, and property rental. The company operates through multiple subsidiaries specializing in different real estate sectors and emphasizes local craftsmanship and customer-centric project planning. The website reflects a professional and consistent brand image with clear contact information and a focus on regional real estate services. Technically, the site uses a range of common web technologies including jQuery and Bootstrap, with moderate performance and good mobile optimization. Security posture is solid with HTTPS enforced and email obfuscation, though security headers and incident response details could be improved. Privacy compliance is strong with a clear cookie consent mechanism and a comprehensive privacy policy. WHOIS data is privacy protected, which is typical for European domains, and does not raise immediate trust concerns. Overall, the website and business present a trustworthy and professional front with room for technical and security enhancements.
Detected Technologies
11 urgent findings need attention
1 critical · 10 high
- + 3 more findings in the full report below
Keep dup-kn.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
20/100
GDPR Compliance
5 findings
28/100
NIS2 Compliance
9 findings
2/100
Email Security
4 findings
70/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The company holds a strong regional market position in the real estate sector around Konstanz, leveraging decades of experience and a diversified portfolio through subsidiaries. Its business model focuses on property development, renovation, and rental, targeting property owners, investors, and tenants. The firm benefits from local partnerships and a reputation for quality, which supports competitive advantages in customer trust and project execution. The website content and structure support these business goals, though the absence of detailed certifications or security policies suggests opportunities for further credibility enhancement. The company’s digital presence is modest but effective, with limited marketing or analytics tools, indicating a focus on direct client relationships rather than broad digital marketing.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a basic to moderate security maturity level. HTTPS is properly implemented, and email addresses are obfuscated to reduce spam risk. However, the absence of security headers such as Content-Security-Policy and lack of a security.txt file indicate gaps in security best practices. No vulnerabilities or exposed sensitive data were detected in the HTML content. Incident response information is not publicly available, which could hinder rapid communication in case of security incidents. GDPR compliance is evident through cookie consent and privacy policy, but further improvements in accessibility and security transparency would strengthen the overall posture. The current security setup is adequate for the business type but could be enhanced to mitigate emerging threats and improve stakeholder confidence.
Strategic Recommendations
Priority Actions for Security Improvement
Implement HTTP security headers including Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to harden the site against common attacks.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Doser + Partner Baugesellschaft mbH
Doser + Partner Baugesellschaft mbH is a real estate company founded in 1991 in Konstanz, Germany. It specializes in project development, new construction, renovation of old buildings, and rental of residential properties. The company operates through several subsidiaries focusing on specific sectors within real estate. It emphasizes collaboration with local craftsmen and architects and aims to meet individual customer needs while preserving building character and modernizing with high comfort.
good
consistent
Technical Stack
moderate
good
basic
basic
Security Assessment
- HTTPS enforced
- No exposed sensitive data in HTML
- Email obfuscation via JavaScript
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenges
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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 X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing
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
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
No Data Protection Officer mentioned
LOWLarge organizations may need to designate a DPO under GDPR
Privacy policy may not be GDPR compliant
MEDIUMPrivacy policy lacks explicit GDPR compliance elements
EU business without adequate privacy measures
CRITICALEU businesses are subject to strict GDPR requirements
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, banking, digital
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
No DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
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
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 71 days
Partial SSL/TLS Assessment
LOWCompleted 2 of 4 security checks due to time constraints
Certificate Details
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
No DMARC Record
MEDIUMDMARC policy not configured
Domain Registration Details
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 dup-kn.de compare?
See how dup-kn.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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