Is sanierungs-offensive.de Safe? Security Analysis for Die Sanierungsoffensive
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GDPR-aligned
Data handling
EU
Hosting region
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Die Sanierungsoffensive is a German-based energy sector company specializing in providing comprehensive home renovation services focused on energy efficiency and sustainability. The company offers a digital Sanierungsrechner (renovation calculator) to help customers plan and estimate costs for modernizing heating, ventilation, sanitation, electrical installations, photovoltaics, and e-mobility solutions. Backed by the House of Energy GmbH, a medium-sized enterprise with multiple locations and a strong market presence, the website reflects a professional and well-structured digital platform supporting customer engagement and project management. Technically, the site is built on WordPress with modern plugins and frameworks, ensuring good performance and mobile optimization. Security posture is solid with HTTPS and cookie consent mechanisms, though some security headers could be improved. Privacy compliance is partial due to missing explicit privacy policy and terms of service pages. Overall, the site is trustworthy, well-branded, and serves its target audience effectively.
Detected Technologies
13 urgent findings need attention
1 critical · 12 high
- + 5 more findings in the full report below
Keep sanierungs-offensive.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
1 finding
85/100
NIS2 Compliance
9 findings
2/100
Email Security
6 findings
55/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The company operates in the energy sector with a focus on sustainable home technology modernization. Its business model combines digital tools (Sanierungsrechner) with expert consulting and project execution services. The target market includes homeowners and construction clients in Germany seeking to reduce energy costs and environmental impact. The parent company, House of Energy GmbH, supports the brand with significant operational capacity and a broad portfolio. Customer testimonials and detailed service descriptions enhance credibility. The company leverages digital marketing and tracking tools for lead generation and customer engagement. Growth potential is supported by increasing demand for energy-efficient home solutions in the German market.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a mature security posture with enforced HTTPS, no visible sensitive data leaks, and use of cookie consent management. However, the absence of several key security headers (CSP, X-Frame-Options, X-Content-Type-Options) suggests room for improvement. The use of reputable WordPress plugins and regular updates is implied but should be verified. No vulnerabilities or malware indicators were detected in the HTML content. Incident response and security policy information are not publicly disclosed, which is common but could be enhanced for transparency. Overall, the security risk is low but can be further mitigated by implementing recommended headers and formal policies.
Strategic Recommendations
Priority Actions for Security Improvement
Publish a comprehensive privacy policy and terms of service pages to improve privacy compliance and user trust.
✨Observations
Comprehensive website and business-context analysis.
AI-Enhanced Website Analysis
Business Insights
Die Sanierungsoffensive
Die Sanierungsoffensive bietet einen Sanierungsrechner und umfassende Beratung zur energieeffizienten, modernen und umweltfreundlichen Haustechnik. Das Angebot umfasst Planung, Kostenberechnung und Umsetzung von Sanierungsmaßnahmen in den Bereichen Heizung, Lüftung, Sanitär, Klima, Elektro, Photovoltaik und E-Mobilität.
excellent
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- No exposed sensitive data in HTML
- Use of cookie consent plugin
- No visible vulnerable libraries
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
Forces HTTPS connections
Missing X-Frame-Options header
Prevents clickjacking attacks
Missing X-Content-Type-Options header
Prevents MIME type sniffing
Missing Content-Security-Policy header
Controls resources the browser is allowed to load
Missing X-XSS-Protection header
Legacy XSS protection (deprecated but still recommended)
Missing Referrer-Policy header
Controls referrer information sent with requests
Missing Permissions-Policy header
Controls browser features and APIs
👤GDPR Compliance
Privacy and data protection assessment under GDPR regulations.
GDPR Compliance
Privacy and data protection assessment
No Cookie Consent Banner found
GDPR requires explicit consent for non-essential cookies
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No information security framework found
NIS2 requires documented cybersecurity and information security measures
No vulnerability disclosure policy
NIS2 encourages coordinated vulnerability disclosure
No security policy documentation found
NIS2 requires documented cybersecurity governance and risk management
No incident response procedures found
NIS2 requires documented incident response and business continuity plans
No business continuity planning found
NIS2 emphasizes operational resilience and business continuity
No security contact information
NIS2 requires clear incident reporting channels
No vulnerability reporting mechanism
Clear vulnerability reporting supports coordinated disclosure
No NIS2 reference found
Consider explicitly mentioning NIS2 compliance efforts
Critical sector without clear security compliance
Detected 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
DMARC not enforcing
DMARC policy is set to "none"
No DMARC reporting
DMARC aggregate reports not configured
No DKIM record found
DKIM adds cryptographic signatures to emails
No BIMI Record
BIMI displays brand logos in email clients
No MTA-STS Policy
MTA-STS enforces TLS for email delivery
No TLS-RPT Record
TLS-RPT provides reporting for email TLS issues
SPF Details
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Weak Protocols Supported
Server supports weak protocols: TLSv1.1
OCSP Stapling Not Enabled
OCSP stapling improves performance and privacy
Certificate Transparency Not Implemented
Certificate is not logged in Certificate Transparency logs
SSL Certificate Expires Within 90 Days
SSL certificate expires in 46 days
Partial SSL/TLS Assessment
Completed 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
DNSSEC is not configured for this domain
CAA Records Not Configured
Certificate Authority Authorization (CAA) records not found
Domain Transfer Lock Not Enabled
Domain can be transferred without authorization
Domain Delete Lock Not Enabled
Domain can be deleted without additional verification
DMARC Policy Set to None
DMARC is configured but not enforcing any policy
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
High-Risk Service Exposed: FTP
Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer
Service Exposed: SSH
Port 22 (SSH) is publicly accessible - SSH - Secure but can be brute-forced
High-Risk Service Exposed: NetBIOS
Port 139 (NetBIOS) is publicly accessible - NetBIOS - Windows file sharing
Critical Service Exposed: SMB
Port 445 (SMB) is publicly accessible - SMB - Windows file sharing, high risk
How does sanierungs-offensive.de compare?
sanierungs-offensive.de scores below average. Browse similar domains to see how competitors handle security.
🔧Technical Analysis
Detailed technical findings and analysis from AI assessment.
Technical Analysis
Comprehensive security assessment findings
Additional Findings
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