Is petradekleermaeker.nl Safe? Security Analysis for Petra de Kleermaeker Makelaardij
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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
Petra de Kleermaeker Makelaardij is a small, professional real estate agency operating primarily in Arnhem, Netherlands. The company offers a range of services including property sales, purchases, mortgage advice, and insurance. Their market position is supported by recognized certifications such as NVM membership and Erkend Financieel Adviseur status, indicating a trusted local presence. The website reflects a clear business focus on residential real estate clients, providing free valuations and personalized service. Technically, the website is built on ASP.NET WebForms with modern integrations such as Google Tag Manager and Google Maps API, ensuring a functional and moderately performant user experience. The site is mobile-optimized and includes structured data for SEO and enhanced search engine visibility. Security-wise, the site uses HTTPS and cookie consent mechanisms, but lacks explicit security policies or incident response contacts. No critical vulnerabilities or suspicious elements were detected. Overall, the website demonstrates a good balance of business credibility, technical implementation, and privacy compliance, suitable for its industry and audience.
Detected Technologies
8 urgent findings need attention
8 high
Keep petradekleermaeker.nl under constant watch
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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
2 findings
73/100
NIS2 Compliance
8 findings
17/100
Email Security
3 findings
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
The business operates in the real estate and financial advisory sectors, targeting home buyers and sellers in Arnhem and nearby regions. Their business model centers on brokerage services complemented by mortgage and insurance offerings, creating diversified revenue streams. The company leverages partnerships with industry bodies like NVM and financial certification organizations, enhancing trust and market reach. Social media presence across Twitter, YouTube, LinkedIn, and Facebook supports marketing and customer engagement. The website content and structure indicate a focus on local market expertise and customer service, with clear contact channels and service descriptions. Growth potential lies in digital marketing and expanding mortgage/insurance advisory services. The absence of a parent company or subsidiaries suggests an independent operation with a localized footprint.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
The website maintains a good security baseline with HTTPS enforced and cookie consent implemented, aligning with GDPR requirements. However, explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options are not confirmed and should be added to enhance protection against common web attacks. No security.txt or formal security policy is published, limiting transparency on vulnerability disclosure and incident response. The use of third-party scripts like Google Tag Manager and Google Maps is standard but requires ongoing monitoring for vulnerabilities. No exposed sensitive data or known vulnerable libraries were detected in the HTML content. Overall, the security posture is adequate for a small real estate business but can be improved with formal policies and enhanced HTTP headers.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and verify security headers including CSP, X-Frame-Options, and X-Content-Type-Options to strengthen web security.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Petra de Kleermaeker Makelaardij
Petra de Kleermaeker Makelaardij is a real estate agency based in Arnhem, Netherlands, offering services such as buying and selling homes, mortgage advice, and insurance. They provide free home valuation and personalized local real estate services.
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- Cookie consent implemented
- No exposed sensitive data in HTML
- Use of Google Tag Manager for analytics
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenge
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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
Weak Referrer-Policy configuration
LOWCurrent value: "same-origin"
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 Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
Privacy policy may not be GDPR compliant
MEDIUMPrivacy policy lacks explicit GDPR compliance elements
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
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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
DMARC Details
🏆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
Mixed Content Detected
MEDIUM6 resources loaded over insecure HTTP
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
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 petradekleermaeker.nl compare?
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🔧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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