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DNS CNAME Lookup for backup Subdomain
x402
DNS CNAME Lookup for backup Subdomain is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Looks up the CNAME record for the backup.<domain> subdomain via Cloudflare DNS-over-HTTPS and reports whether it exists, its records, and TTL.
Price / call$0.01
Success—
StatusUnknown
How this service works
CNAME record of backup.<domain>: looks up the backup host under the domain you give (CNAME via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like backup without enumerating subdomains. $0.01 per lookup.
Output
Returns whether the backup.<domain> CNAME record exists, the CNAME target hostname it resolves to, the TTL value, and the full DNS record details as retrieved via Cloudflare DNS-over-HTTPS.
Example use cases
Verify backup infrastructure DNS
“Check if backup.mycompany.com has a CNAME configured and what it resolves to — I want to confirm our backup host is properly set up in DNS.”
Audit domain before migration
“Before we migrate acmecorp.com to a new provider, can you check whether backup.acmecorp.com has a CNAME record and what its TTL is?”
Detect backup subdomain for a competitor
“I need to know if backup.techstartup.io exists as a CNAME in DNS — look it up and tell me if there's a record and what it points to.”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/host/backup/cname?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, targeted existence check for the backup subdomain of a specific domain without doing broad subdomain enumeration. Ideal for infrastructure auditing, pre-migration checks, or verifying backup host DNS configuration. Prefer this over general DNS tools when you specifically need CNAME data for the backup host and want a simple pass/fail existence result with TTL.
Side effects
- Domain does not exist — returns no record found
- backup subdomain has no CNAME record — returns existence: false
- DNS resolution timeout from Cloudflare DoH — may return error
- Malformed domain input — may result in invalid query or error response
- Domain has A/AAAA record instead of CNAME — CNAME lookup returns no result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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