Is xs4all.nl Safe? Security Analysis for XS4ALL
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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
XS4ALL is a well-established Dutch telecommunications provider offering internet, television, and telephony services with a strong emphasis on secure and reliable connectivity. The company has a history spanning over 25 years and operates as a subsidiary of KPN, a major telecom operator in the Netherlands. The website reflects this integration, directing new subscriptions and services through KPN's platforms while maintaining XS4ALL's brand identity and customer service focus. The target audience primarily consists of Dutch consumers and small businesses seeking high-quality internet and communication services. Technically, the website is built with modern HTML5, CSS3, and JavaScript, optimized for mobile devices with good SEO practices. Security posture is solid with HTTPS enforced and a Content-Security-Policy header, though additional security headers and explicit security policies could enhance trust. Privacy compliance is addressed with clear links to privacy and cookie policies, though no active cookie consent mechanism is present. Overall, the site is professional, trustworthy, and accessible without any blocking or WAF interference.
Detected Technologies
7 urgent findings need attention
7 high
Keep xs4all.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
4 findings
75/100
GDPR Compliance
3 findings
68/100
NIS2 Compliance
9 findings
2/100
Email Security
4 findings
70/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
XS4ALL holds a strong market position in the Dutch telecommunications sector, leveraging its long-standing brand reputation and integration with KPN to offer bundled internet, TV, and telephony services. The business model focuses on consumer and small business segments, providing secure and reliable connectivity with award-winning customer service. Revenue streams likely include subscription fees for bundled packages sold via KPN's channels. The partnership ecosystem is centered around KPN, with recruitment partnerships through Randstad and YoungCapital. The company's operations emphasize service quality and customer support, maintaining a consistent brand presence and trust signals such as social media engagement and clear contact channels.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a mature security posture with HTTPS enforced and a Content-Security-Policy restricting image sources to trusted domains. However, the absence of additional security headers like X-Frame-Options, X-XSS-Protection, and Strict-Transport-Security represents an area for improvement. No vulnerability disclosure or incident response information is published, which could hinder transparency and responsiveness to security issues. The lack of a security.txt file or dedicated security contact emails reduces the ability for external parties to report vulnerabilities effectively. Privacy policies are comprehensive and GDPR compliant, but cookie consent mechanisms are not implemented, which may pose compliance risks. Overall, the security posture is good but could be enhanced by adopting broader security best practices and transparency measures.
Strategic Recommendations
Priority Actions for Security Improvement
Implement additional HTTP security headers such as X-Frame-Options, X-XSS-Protection, and Strict-Transport-Security to strengthen defense-in-depth.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
XS4ALL
XS4ALL offers internet, television, and telephony services focused on secure and reliable internet with award-winning service.
good
consistent
Technical Stack
moderate
good
basic
good
Security Assessment
- HTTPS enforced
- Content-Security-Policy restricting images to self and domain
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is fully accessible with no blocking or WAF challenges.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Weak Strict-Transport-Security configuration
LOWCurrent value: "max-age= 63072000; includeSubdomains; preload"
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
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
Critical sector without clear security compliance
HIGHDetected sectors: transport
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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
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
DMARC Details
🏆SSL/TLS Security
Certificate validity and encryption analysis.
SSL/TLS Security
Certificate validity and encryption analysis
Weak SSL Key Length
HIGHSSL certificate uses 256-bit key, which is considered weak
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
How does xs4all.nl compare?
See how xs4all.nl 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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