Is belastingdienst.nl Safe? Security Analysis for Belastingdienst Nederland
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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
5 urgent findings need attention
5 high
Keep belastingdienst.nl 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
3 findings
68/100
NIS2 Compliance
8 findings
17/100
Email Security
1 finding
85/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Belastingdienst operates as a government entity under the Ministry of Finance, providing essential tax and customs services to the Netherlands. Its business model is non-commercial, focused on regulatory compliance and public service. The website supports multiple user segments including individuals, businesses, and intermediaries, offering tailored services such as tax filing, allowances, and customs information. The domain and branding are consistent with official government standards, reinforcing trust and authority. The site integrates with partner domains related to tax recovery and employment, enhancing service breadth. The presence of advanced analytics and A/B testing tools indicates ongoing efforts to optimize user experience and service delivery. The lack of direct contact emails or phone numbers suggests a controlled communication channel, likely to manage high volumes and ensure security.
Security Posture Analysis
Comprehensive Security Assessment
The website exhibits a mature security posture with mandatory HTTPS, likely comprehensive security headers, and no visible exposure of sensitive information. The use of modern JavaScript libraries and frameworks is well-managed without known vulnerabilities. However, the absence of published security policies, incident response contacts, and vulnerability disclosure mechanisms represents a gap in transparency and user assurance. No signs of WAF or blocking mechanisms were detected, indicating open accessibility. Privacy policies are present and GDPR compliant, but cookie consent mechanisms could be enhanced. Overall, the site is secure for its purpose but could improve in security communication and incident readiness.
Strategic Recommendations
Priority Actions for Security Improvement
Implement an explicit cookie consent banner to comply fully with privacy regulations.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Belastingdienst
Startpunt voor belastingen. Lees hoe u aangifte doet en wanneer wij uw voorlopige aanslag uitbetalen. Of vind een antwoord op uw vraag in het menu en bij belangrijke thema's.
excellent
consistent
Technical Stack
moderate
good
good
good
Security Assessment
- HTTPS enforced
- No exposed sensitive data in HTML
- Secure login forms
- No visible vulnerable libraries
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Official Dutch government tax authority website
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
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 Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
No Data Protection Officer mentioned
LOWLarge organizations may need to designate a DPO under GDPR
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 DKIM record found
MEDIUMDKIM adds cryptographic signatures to emails
SPF Details
DMARC Details
MTA-STS Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
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
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
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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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