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x402-farm Domain Health Check
x402
x402-farm Domain Health Check is a paid API for AI agents from api.x-402.online, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).
Checks DNS records, TLS certificate, HTTP redirect chain, and security headers for a given domain in a single call
Price / call$0.005
Success—
StatusUnknown
How this service works
Check whether a domain is reachable and healthy: DNS, certificate, redirects, security headers. One call on a domain: A, AAAA, NS, MX and SPF records; the TLS certificate with issuer, expiry and days left; the HTTP redirect chain hop by hop; and which security headers are present. Read from our infrastructure. Query…
Output
Returns a structured report including: A, AAAA, NS, MX, and SPF DNS records; TLS certificate details with issuer, expiry date, and days remaining; the full HTTP redirect chain hop-by-hop; and a list of security headers present on the domain.
Example use cases
Pre-launch domain verification
“Before we go live, run a health check on mybrand.io — I need to confirm the DNS records look right, the TLS cert is valid and not expiring soon, and that the right security headers are in place.”
Monitoring expiring certificates
“Check the SSL certificate status on clientsite.com for me — I want to know who issued it, when it expires, and how many days we have left before it needs to be renewed.”
Email deliverability audit
“Can you pull the MX and SPF records for acmecorp.com? I'm troubleshooting email delivery issues and want to make sure the DNS is configured correctly.”
Technical details
Endpoint
GEThttps://api.x-402.online/v1/domain/health?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call domain health audit combining DNS, TLS, redirects, and security headers. Ideal for pre-launch checks, certificate expiry monitoring, or security posture reviews without needing to stitch together multiple specialized DNS or SSL tools. Particularly useful when cost per check matters — at $0.005 per call via USDC/x402, it is inexpensive for automated or batch monitoring workflows.
Side effects
- Domain does not exist or cannot be resolved — returns DNS lookup failure
- Domain is unreachable or times out — returns connectivity error
- Invalid domain name format — returns validation error
- TLS certificate completely missing or handshake failure — reported in certificate section with error state
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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