Is wsrv.nl Safe? Security Analysis for wsrv.nl contributors
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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
wsrv.nl is an open source image caching and resizing service that enables on-the-fly image manipulation with a worldwide CDN cache. The service is widely used, processing millions of images per hour and delivering high volumes of outbound traffic. The website targets developers and businesses requiring efficient image processing solutions. The business model is community-driven and open source, with no direct monetization evident. The domain has been active since 2011, indicating maturity and stability in the market. Technically, the website employs modern technologies including nginx, libvips for image processing, Cloudflare CDN for global delivery, and VitePress for documentation. The site is fast, mobile-optimized, and accessible with good SEO practices. However, explicit security headers are not detected, and no cookie or terms of service policies are present, which could be improved. Security posture is solid with HTTPS and DNSSEC enabled, but the absence of a published security policy or incident response contacts limits transparency. No vulnerabilities or exposed sensitive data were found. Privacy compliance is partial, with a privacy policy linked externally but no cookie consent mechanism. Overall, wsrv.nl presents a trustworthy and technically competent service with room for improvement in privacy and security transparency. Strategic recommendations include adding cookie policies, security headers, and contact information for incident response to enhance trust and compliance.
Detected Technologies
11 urgent findings need attention
1 critical · 10 high
- + 3 more findings in the full report below
Keep wsrv.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
6 findings
40/100
GDPR Compliance
5 findings
28/100
NIS2 Compliance
9 findings
2/100
Email Security
6 findings
55/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
wsrv.nl occupies a niche in the technology sector as a free, open source image caching and resizing service. Its competitive advantage lies in its high performance, global CDN integration, and open source nature, attracting developers and businesses seeking cost-effective image manipulation solutions. The business model relies on community contributions and open source licensing (BSD 3-Clause). The service handles significant traffic volumes, indicating strong adoption and growth potential. Partnerships with Cloudflare and use of popular technologies like libvips strengthen its ecosystem. The absence of direct monetization suggests a focus on community and developer goodwill rather than commercial revenue streams.
Security Posture Analysis
Comprehensive Security Assessment
The website demonstrates a mature security posture with HTTPS and DNSSEC enabled, ensuring encrypted communications and domain integrity. However, the lack of explicit security headers such as Content-Security-Policy and X-Frame-Options is a gap that could expose the site to certain web-based attacks. No contact information for security incidents or a published security policy reduces transparency and incident response readiness. Privacy compliance is partial, with a privacy policy present but no cookie consent mechanism. No vulnerabilities or exposed sensitive data were detected, indicating good operational security. Overall, the security posture is solid but could be enhanced with better policy publication and header implementation.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and publish a comprehensive cookie policy with a user consent mechanism to comply with privacy regulations.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
wsrv.nl contributors
Image cache & resize service that manipulates images on-the-fly with a worldwide cache.
good
consistent
Technical Stack
fast
good
good
good
Security Assessment
- HTTPS enabled
- DNSSEC enabled
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is an open source image caching and resizing service.
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🛡️Security Headers
HTTP security headers analysis and recommendations.
Security Headers
HTTP security headers analysis
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
Missing Content-Security-Policy header
HIGHControls resources the browser is allowed to load
Missing X-XSS-Protection header
MEDIUMLegacy XSS protection (deprecated but still recommended)
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 Policy found
HIGHGDPR requires clear information about cookie usage
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
EU business without adequate privacy measures
CRITICALEU businesses are subject to strict GDPR requirements
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, 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 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
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 86 days
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
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
DMARC Policy Set to None
LOWDMARC is configured but not enforcing any policy
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 wsrv.nl compare?
See how wsrv.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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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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