Is duncanleo.me Safe? Security Analysis for Undertide
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Below Technology avg (72)
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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
The website www.duncanleo.me is a personal professional portfolio for Duncan Leo, a software engineer based in Singapore. The site highlights his co-founding of Undertide, a development studio, and his current role at Taskade. It showcases various projects and professional experiences, targeting technology professionals, potential clients, and collaborators. The business model centers on software development services and personal branding within the technology sector. The site is well-structured, mobile-optimized, and uses modern technologies such as Hugo, React, and Next.js. From a technical perspective, the site is built with a static site generator (Hugo) and integrates modern web frameworks and languages. It demonstrates good performance, mobile optimization, and accessibility. However, no hosting provider or SSL configuration details were available from the data provided. Security headers are not detected, and no privacy or cookie policies are present, indicating room for improvement in compliance and security posture. Security-wise, the site does not expose sensitive data and shows no visible vulnerabilities. The absence of security headers and privacy policies reduces the overall security and privacy compliance score. WHOIS data is unavailable due to query failure or privacy protection, but the website content is consistent with a legitimate personal professional presence. No suspicious patterns or indicators of malicious activity were found. Overall, the website is professional and trustworthy but would benefit from enhanced security headers, privacy and cookie policies, and incident response information to improve compliance and security posture. The domain WHOIS privacy protection is justified given the personal nature of the site.
Detected Technologies
13 urgent findings need attention
13 high
- + 5 more findings in the full report below
Keep duncanleo.me 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
35/100
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
Duncan Leo operates as a small independent software development professional and co-founder of Undertide, focusing on full-stack web and mobile applications. The business targets technology clients and collaborators, leveraging a portfolio of projects and professional experience to build credibility. The business model is service-oriented with a strong emphasis on technical leadership and software engineering expertise. The partnership ecosystem includes Undertide and Taskade, with no subsidiaries or parent companies indicated. Growth indicators include ongoing employment at Taskade and continuous project development. The website serves as a digital resume and portfolio, supporting business development and professional networking.
Extracted Contact Information
Marketing Intelligence Data
Physical Addresses (1)
Security Posture Analysis
Comprehensive Security Assessment
The current security maturity level is moderate. The website does not expose sensitive information and uses HTTPS (assumed from modern web standards, though SSL details are not explicit). However, the absence of security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces protection against common web attacks. No vulnerability disclosure or incident response contacts are provided, limiting readiness for security incidents. Privacy compliance is weak due to missing privacy and cookie policies. The security culture appears informal, consistent with a personal portfolio site rather than a corporate environment. Enhancements in security headers, privacy documentation, and incident response mechanisms are recommended to improve the security posture.
Strategic Recommendations
Priority Actions for Security Improvement
Implement standard security headers including Content Security Policy, HSTS, and X-Frame-Options to enhance protection against web attacks.
✨Observations
AI-powered comprehensive website and business analysis.
AI-Enhanced Website Analysis
Business Insights
Undertide
Personal website of Duncan Leo, a software engineer based in Singapore. He co-founded Undertide, a development studio building full-stack web and mobile apps, and currently works at Taskade. The site highlights his projects and professional experience.
good
consistent
Technical Stack
fast
excellent
good
good
Security Assessment
- No exposed sensitive data in HTML
- No visible vulnerable libraries
Analytics & Tracking
Advertising & Marketing
Website Quality Assessment
Key Observations
Website is a personal professional portfolio for a software engineer.
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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
Third-party services without privacy policy
HIGHDetected services: Twitter, LinkedIn, Google APIs
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 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
🏆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 39 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 Delete Lock Not Enabled
LOWDomain can be deleted without additional verification
Weak SPF Policy
HIGHSPF record has permissive policy allowing any server to send email
No DMARC Record
MEDIUMDMARC policy not configured
Domain Registration Details
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 duncanleo.me compare?
See how duncanleo.me 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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