Is vaillant-group.com Safe? Security Analysis for Vaillant
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GDPR-aligned
Data handling
EU
Hosting region
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Vaillant Group is a globally recognized leader in the energy sector, specializing in climate-friendly heating, cooling, and hot water solutions including heat pumps and gas condensing boilers. The company operates in over 60 countries with a workforce of approximately 16,000 employees, emphasizing sustainability and digital services. The website reflects a mature and professional business with consistent branding and comprehensive content tailored to customers, partners, and potential employees. Technically, the site leverages modern JavaScript libraries, lazy loading, and CDN hosting via Amazon S3 and CloudFront, with a CMS likely based on e-Spirit. However, a critical security gap exists due to the absence of a valid SSL certificate and HTTPS support, severely impacting the security posture. Privacy and cookie policies are present and GDPR compliant, and the site integrates Google Tag Manager for analytics and Consentmanager.net for consent management. Overall, the site is well-structured and user-friendly but requires urgent security improvements.
Detected Technologies
11 urgent findings need attention
3 critical · 8 high
- + 3 more findings in the full report below
Keep vaillant-group.com 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
5 findings
50/100
GDPR Compliance
6 findings
18/100
NIS2 Compliance
8 findings
5/100
Email Security
1 finding
50/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Vaillant Group holds a strong market position as a leading provider of energy-efficient heating and climate solutions. Their business model combines product manufacturing with digital service offerings, targeting residential and commercial customers focused on sustainability. The company’s partnerships with WWF and SOS-Kinderdörfer worldwide enhance its corporate social responsibility profile. The domain's long registration history and consistent WHOIS data reinforce the company's legitimacy. The website supports multiple languages and provides extensive information on brands, technologies, and corporate responsibility, indicating a mature digital presence. The career portal is integrated as a related domain, supporting talent acquisition efforts.
Security Posture Analysis
Comprehensive Security Assessment
The website currently lacks a valid SSL certificate and does not support any TLS protocols, exposing users to significant security risks such as data interception and man-in-the-middle attacks. While some security headers like XSS protection and content-type options are set, the absence of HTTPS and modern TLS protocols is a critical vulnerability. No incident response or security policy information is publicly available, and no vulnerability disclosure or security.txt files were found. The site uses consent management tools and complies with GDPR in privacy and cookie policies, but the fundamental transport security must be addressed immediately to protect user data and maintain trust.
Strategic Recommendations
Priority Actions for Security Improvement
Obtain and deploy a valid SSL/TLS certificate to enable HTTPS across the entire site.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing X-Frame-Options header
Prevents clickjacking attacks
Missing Content-Security-Policy header
Controls resources the browser is allowed to load
Weak Referrer-Policy configuration
Current value: "same-origin"
Missing Permissions-Policy header
Controls browser features and APIs
Sensitive data may be cached
Cache-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 Cookie Policy found
GDPR requires clear information about cookie usage
No Cookie Consent Banner found
GDPR requires explicit consent for non-essential cookies
Insufficient contact information
GDPR requires organizations to provide clear contact details
No Data Protection Officer mentioned
Large organizations may need to designate a DPO under GDPR
Privacy policy may not be GDPR compliant
Privacy policy lacks explicit GDPR compliance elements
No HTTPS encryption
GDPR requires appropriate security measures for personal data
GDPR Compliance Analysis
🛡️NIS2 Compliance
Network & Information Security Directive compliance assessment.
NIS2 Compliance
Network & Information Security Directive
No HTTPS encryption
NIS2 requires appropriate technical measures including encryption
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 NIS2 reference found
Consider explicitly mentioning NIS2 compliance efforts
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📧Email Security
SPF, DKIM, and DMARC validation and email security assessment.
Email Security
SPF, DKIM, and DMARC validation
Email Security Check Incomplete
Some email security checks timed out
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
No HTTPS Encryption
Website does not use HTTPS encryption, making all data transmission vulnerable to interception
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
Domain Delete Lock Not Enabled
Domain can be deleted without additional verification
Domain Registration Details
DNS Records
DNSSEC Status
⚡Network Security
Port scanning and network exposure analysis.
Network Security
Port scanning and network exposure analysis
Good Network Security Posture
No unnecessary services detected on common risky ports
How does vaillant-group.com compare?
vaillant-group.com 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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