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Domain Intel — WHOIS, DNS, TLS & Subdomain Lookup via x402
x402
Domain Intel — WHOIS, DNS, TLS & Subdomain Lookup via x402 is a paid API for AI agents from dns.halowerk.com, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-13).
Returns WHOIS, DNS records, mail policy, TLS certificate details, and subdomains for a given domain, paid per-call in USDC over x402.
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
A structured report covering: WHOIS registration data (registrar, registrant, dates), DNS records (A, AAAA, MX, NS, TXT, CNAME, etc.), mail authentication policy (SPF, DKIM, DMARC), TLS certificate details (issuer, validity, SANs), and discovered subdomains — all for the queried domain. When a baseline is supplied, the response can highlight changes versus the prior snapshot.
Example use cases
Security audit of a vendor domain
“Run a full domain intel check on acmecorp.io — I need their WHOIS ownership info, DNS records, TLS cert details, and subdomains so I can assess whether it's safe to integrate with them.”
Phishing domain investigation
“Someone sent me a suspicious email from support@paypa1-secure.com — can you pull up everything you can find on paypa1-secure.com, including who registered it, what DNS records it has, and what TLS cert it's using?”
DNS change monitoring against a baseline
“Yesterday's DNS records for mybrand.com showed these A records: 104.21.5.1 and 104.21.5.2 as of 2025-06-01T00:00:00Z — can you check again now and flag if anything has changed?”
Technical details
Endpoint
POSThttps://dns.halowerk.com/domain/articles/ns-webflow?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, multi-signal domain intelligence snapshot (WHOIS + DNS + mail policy + TLS + subdomains) in a single call without requiring an API key or subscription. It is ideal for ad-hoc security research, phishing investigation, vendor due diligence, or DNS change detection via baseline diffing. Prefer it over standalone WHOIS or DNS-only APIs when breadth of signal matters and you want pay-as-you-go USDC billing with no account setup.
Side effects
- Domain not found or unresolvable — returns empty or error response
- Invalid domain format (exceeds 253 chars or malformed) — schema validation rejection
- WHOIS data unavailable for some ccTLDs or privacy-shielded registrations
- TLS certificate absent if domain has no HTTPS endpoint
- Subdomains may be incomplete if the domain uses aggressive wildcard DNS
- Payment failure over x402 if wallet has insufficient USDC balance
- Rate or timeout issues for very large subdomain sets
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | |
| baseline | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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