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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).
Given a domain name, returns WHOIS registration data, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, and subdomain enumeration — billed per call in USDC over the x402 protocol.
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 response containing: WHOIS registration data (registrar, registrant, expiry dates), full DNS records (A, AAAA, MX, NS, TXT, CNAME etc.), mail policy records (SPF, DKIM, DMARC), TLS certificate metadata (issuer, validity, SANs), and a list of discovered subdomains — all for the queried domain.
Example use cases
Threat intel on suspicious domain
“I got a phishing email from a link pointing to secure-paypa1.net — can you look up who owns it, check its DNS and TLS cert, see what subdomains exist, and tell me if it has any mail authentication policies set up?”
Email deliverability audit for client
“Run a full domain check on acmecorp.io — I specifically need to see their SPF, DKIM, and DMARC records to find out why their emails are landing in spam.”
Monitor DNS drift from baseline
“Last week I recorded the DNS records for shopify.com — here's that baseline snapshot. Can you re-check the domain now and tell me if anything has changed since then?”
Technical details
Endpoint
POSThttps://dns.halowerk.com/domain/articles/ns-enom?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single, no-signup, pay-per-call call that bundles WHOIS, DNS, mail policy, TLS, and subdomains together for one domain — especially useful in agent workflows where spinning up API keys is impractical. Prefer it over dedicated WHOIS or DNS tools when you want all domain intelligence signals in one response. The optional baseline parameter makes it uniquely suited for change-detection workflows comparing current state against a previously observed snapshot.
Side effects
- Domain not found or NXDOMAIN — returns empty or error for non-existent domains
- WHOIS privacy shielding may result in redacted registrant data
- TLS certificate absent if domain has no HTTPS endpoint
- Subdomain enumeration is limited and may miss passively-hidden subdomains
- Rate limiting or payment failure via x402 if USDC funds are insufficient
- Malformed domain input (exceeds 253 characters or invalid format) returns validation error
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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