Is yearn.fi Safe? Security Analysis for Yearn
https://yearn.fiCheck if yearn.fi is a scam or legitimate. Free security scan and reviews.
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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
Yearn is a prominent decentralized finance (DeFi) platform specializing in yield aggregation through compounding vaults and a growing app ecosystem. Founded in 2020, it targets cryptocurrency investors seeking optimized yield opportunities. The platform is well-positioned in the DeFi market with a strong community and multiple partner integrations enhancing its ecosystem. Technically, Yearn employs a modern web stack including Next.js and React, hosted likely behind Cloudflare DNS services. The website is fast, mobile-optimized, and provides a professional user experience. Analytics usage is minimal, relying on privacy-focused tools like Plausible. From a security perspective, Yearn demonstrates maturity with audited smart contracts and an active bug bounty program. However, the website lacks explicit privacy and cookie policies, security headers, and direct contact information, which are areas for improvement. No vulnerabilities or suspicious patterns were detected in the WHOIS data, which shows privacy protection typical for crypto projects. Overall, Yearn presents a low-risk profile with strong business credibility and technical implementation. Strategic enhancements in privacy compliance and security headers would further strengthen trust and compliance posture.
Detected Technologies
15 urgent findings need attention
2 critical · 13 high
- + 7 more findings in the full report below
Keep yearn.fi 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
7 findings
30/100
GDPR Compliance
4 findings
25/100
NIS2 Compliance
9 findings
2/100
Email Security
6 findings
40/100
🧠AI Business Intelligence
Technology stack, business insights, and market analysis powered by AI.
Business Intelligence
Market & Strategic Analysis
Yearn operates as a decentralized finance yield aggregator, leveraging compounding vaults and community-built apps to provide optimized returns on digital assets. Its business model is based on aggregating yield opportunities and offering them through a user-friendly interface. The platform has established a robust partnership ecosystem with multiple DeFi projects and integrations, enhancing its market reach and service offerings. The target customers are crypto investors and DeFi users seeking efficient yield strategies. Yearn's competitive advantage lies in its battle-tested vaults, security audits, and active community governance. The project shows indicators of growth and ecosystem expansion through continuous partner collaborations.
Security Posture Analysis
Comprehensive Security Assessment
Yearn exhibits a mature security posture with audited smart contracts and a public bug bounty program hosted on Immunefi, signaling proactive vulnerability management. The website enforces HTTPS and avoids exposing sensitive data. However, it lacks several recommended security headers such as Content Security Policy (CSP) and HTTP Strict Transport Security (HSTS), which could mitigate certain web-based attacks. The absence of explicit privacy and cookie policies may pose compliance risks under GDPR and similar regulations. Incident response contact details are not publicly available, which could delay vulnerability reporting. Overall, the security maturity is good but can be improved by implementing comprehensive security headers and publishing clear privacy and incident response policies.
Strategic Recommendations
Priority Actions for Security Improvement
Implement and publish a comprehensive privacy policy and cookie policy to enhance GDPR compliance and user trust.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Yearn
Yearn is DeFi's Yield Aggregator offering compounding vaults and an app ecosystem for digital asset yield optimization.
excellent
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- HTTPS enforced
- Bug bounty program
- Audited smart contracts
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
Missing X-Frame-Options header
HIGHPrevents clickjacking attacks
Missing X-Content-Type-Options header
MEDIUMPrevents MIME type sniffing
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 Privacy Policy found
HIGHGDPR requires a clear and accessible privacy policy
No Cookie Policy found
HIGHGDPR requires clear information about cookie usage
No Cookie Consent Banner found
HIGHGDPR requires explicit consent for non-essential cookies
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
No SPF record found
HIGHSPF helps prevent email spoofing
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
No email authentication configured
CRITICALDomain is vulnerable to email spoofing
🏆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
SSL Certificate Expires Within 90 Days
MEDIUMSSL certificate expires in 68 days
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
Potential Subdomain Takeover
HIGHSubdomain api.yearn.fi points to unregistered service d3ovxowcsriu34.cloudfront.net
No DMARC Record
MEDIUMDMARC policy not configured
DNS Records
DNSSEC Status
DNS Performance
⚡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 yearn.fi compare?
See how yearn.fi 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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