Is viessmann.sk Safe? Security Analysis for Viessmann
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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
Viessmann Slovakia operates a comprehensive website focused on climate solutions including heating, cooling, ventilation, and energy management. The company is a well-established enterprise with a strong market position in the energy sector, offering a wide range of products and services tailored to both residential and commercial customers. The website reflects a high level of professionalism, with excellent content quality, clear navigation, and consistent branding. Technically, the site uses modern frameworks and technologies such as Adobe Experience Manager, Google Tag Manager, and Usercentrics for consent management, ensuring a good user experience and compliance with privacy regulations. Security posture is strong with HTTPS, security headers, and no visible vulnerabilities. However, explicit security policies and incident response contacts are not publicly detailed, representing an area for improvement. Overall, the domain registration and WHOIS data align well with the business claims, supporting the legitimacy and trustworthiness of the site.
Detected Technologies
10 urgent findings need attention
1 critical · 9 high
- + 2 more findings in the full report below
Keep viessmann.sk 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
3 findings
80/100
GDPR Compliance
5 findings
10/100
NIS2 Compliance
9 findings
2/100
Email Security
5 findings
70/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Viessmann is positioned as a leading provider of sustainable energy and climate solutions, targeting both B2C and B2B segments. Their business model includes manufacturing and selling advanced heating and energy systems, supported by digital services and partner networks. The company emphasizes sustainability, innovation, and quality, supported by certifications and a global presence. Their digital ecosystem includes partner portals and e-commerce platforms, indicating a mature and integrated business approach. The website content and structure support customer education and engagement, enhancing market reach and brand loyalty.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and integration of consent management tools. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of a dedicated security policy page and incident response contact information limits transparency. There is no public vulnerability disclosure program or security.txt file, which could improve security communication and trust. Overall, the site follows good security practices but could enhance its security culture visibility.
Strategic Recommendations
Priority Actions for Security Improvement
Publish a dedicated security policy and incident response page with clear contact channels.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Viessmann
Technológia vykurovania, chladenia a vetrania, ktorá formuje obytný priestor a chráni klímu. Objavte komplexné riešenia od spoločnosti Viessmann.
excellent
consistent
Technical Stack
moderate
good
good
good
Security Assessment
- HTTPS enforced
- Consent management for cookies
- No exposed sensitive data in HTML
- Use of security headers
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is professionally designed and well-structured
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended)
Weak Referrer-Policy configuration
LOWCurrent value: "no-referrer-when-downgrade"
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
DMARC not enforcing
MEDIUMDMARC policy is set to "none"
No DMARC reporting
LOWDMARC aggregate reports not configured
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
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 57 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
Domain Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
DMARC Policy Set to None
LOWDMARC is configured but not enforcing any policy
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 viessmann.sk compare?
See how viessmann.sk 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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