Is siedle.de Safe? Security Analysis for S. Siedle & Söhne, Telefon- und Telegrafenwerke OHG
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Below Manufacturing avg (52)
10,000+
Domains scanned
500+
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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
Siedle is a well-established German manufacturer specializing in building and door communication systems, including intercoms and access control solutions. With a history spanning 275 years, the company holds a strong market position as a leading European provider of high-quality, made-in-Germany products. Their offerings include traditional and IP-based video intercoms, digital services, and customer configurator tools, targeting builders, architects, and trade professionals. The website reflects a mature digital presence with modern technologies and a clear focus on user experience and product information. Technically, the website employs modern JavaScript frameworks, web components, and integrates consent management via Usercentrics, alongside Google Tag Manager for analytics and advertising. The site is mobile-optimized, accessible, and SEO-friendly, though some security headers could be more explicitly implemented. HTTPS is enforced, and no critical vulnerabilities or exposed sensitive data were detected. From a security perspective, the site demonstrates good practices including encrypted connections and cookie consent mechanisms. However, it lacks explicit security policies, incident response contacts, and vulnerability disclosure mechanisms, which are recommended for enhanced trust and compliance. Privacy policies and terms of service are comprehensive and GDPR compliant. Overall, the website is professional, trustworthy, and well-aligned with the company's business stature. Strategic improvements in security transparency and incident readiness would further strengthen its posture.
Detected Technologies
15 urgent findings need attention
1 critical · 14 high
- + 7 more findings in the full report below
Keep siedle.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
8 findings
15/100
GDPR Compliance
5 findings
10/100
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
Siedle operates in the manufacturing sector, focusing on building communication technology. Its competitive advantage lies in its long heritage, German manufacturing quality, and innovation in IoT-enabled intercom systems. The business model centers on product sales complemented by digital services and configurator tools. Target customers include construction professionals, architects, and end-users seeking reliable building communication solutions. The company maintains a strong brand presence with consistent messaging and active social media engagement. Growth is supported by product innovation such as the Siedle IQ IP-based system and a clear commitment to sustainability and regional engagement. Partnerships and service offerings enhance customer support and market reach.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
The website exhibits a mature security posture with enforced HTTPS, use of consent management for cookies, and integration of trusted analytics and advertising platforms. No critical vulnerabilities or exposed sensitive information were found in the HTML content. However, the absence of explicit security headers like X-Frame-Options and a published security policy or incident response contact reduces transparency. There is no security.txt or vulnerability disclosure page, which are best practices for responsible security management. Overall, the site is secure but could improve in formalizing and communicating its security governance and incident handling capabilities.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and explicitly configure security headers such as X-Frame-Options, Referrer-Policy, and Content-Security-Policy.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
S. Siedle & Söhne, Telefon- und Telegrafenwerke OHG
Siedle ist einer der europaweit führenden Hersteller von Sprechanlagen: Gebäude- und Türkommunikation made in Germany. Im Jahr 2025 feiert das Unternehmen sein Jubiläum zum 275-jährigen Bestehen.
excellent
consistent
Technical Stack
moderate
good
good
good
Security Assessment
- HTTPS enforced
- Consent management for cookies
- No exposed sensitive data in HTML
- Use of polyfills for compatibility
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible and professionally designed.
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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
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
No Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
EU business without adequate privacy measures
CRITICALEU businesses are subject to strict GDPR requirements
Third-party services without privacy policy
HIGHDetected services: Google Analytics, Facebook, LinkedIn, YouTube
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, 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
🏆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 60 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
No DMARC Record
MEDIUMDMARC policy not configured
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 siedle.de compare?
See how siedle.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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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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