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Domain Intel — WHOIS, DNS, TLS & Subdomain Lookup (x402)
x402
Domain Intel — WHOIS, DNS, TLS & Subdomain Lookup (x402) is a paid API for AI agents from dns.halowerk.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-12).
Given a domain name, returns WHOIS registration data, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, and subdomains — billed per call in USDC via x402 with no API key required.
Price / call$0.009
Success—
StatusUnknown
How this service works
Domain in, WHOIS, DNS, mail policy, TLS certificate and subdomains out. Pay per call in USDC over x402. No signup, no API key.
Output
Returns a structured report containing: WHOIS registration details (registrar, registrant, creation/expiry dates), full DNS record set (A, MX, NS, TXT, CNAME, etc.), mail security policy analysis (SPF, DKIM, DMARC), TLS/SSL certificate metadata (issuer, validity, SANs), and enumerated subdomains.
Example use cases
Audit third-party vendor domain
“I need to vet a new vendor before we onboard them — can you pull the WHOIS, DNS records, TLS cert, and mail security policy for acmecorp.io so I can check if they look legitimate?”
Detect phishing domain impersonation
“I got an email from support@paypa1-secure.com and I'm suspicious — look up WHOIS, DNS, TLS certificate, and subdomains for paypa1-secure.com so I can tell if it's a spoofed phishing domain.”
Monitor DNS changes over baseline
“We last scanned techstartup.dev two weeks ago and have baseline DNS records from that scan — can you re-run a full domain intel check on techstartup.dev against that baseline to see if anything has changed in the DNS or nameservers?”
Technical details
Endpoint
POSThttps://dns.halowerk.com/domain/articles/ns-hostinger?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, all-in-one domain intelligence snapshot (WHOIS + DNS + mail policy + TLS + subdomains) in a single call without requiring an API key or subscription. Ideal for ad-hoc agent workflows, security investigations, and vendor due diligence where pay-per-use USDC billing via x402 is acceptable. Less suitable if you only need a single record type (e.g. pure DNS resolution) or require extremely high query volume at bulk pricing.
Side effects
- Domain not found or unresolvable — returns empty or partial results
- Invalid domain string exceeding 253 characters — validation error
- WHOIS rate limiting or gating by registry — partial WHOIS data returned
- Subdomain enumeration may be incomplete for large or well-protected domains
- x402 payment failure — request rejected before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | |
| baseline | object |
Tags
x402
Reviews
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