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DNS CNAME Record Lookup with Dangling-CNAME Detection
x402
DNS CNAME Record Lookup with Dangling-CNAME Detection is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Resolves the CNAME alias target chain for a hostname, returns TTL, and flags dangling CNAMEs (targets that don't resolve) as subdomain-takeover risk indicators.
Price / call$0.01
Success—
StatusUnknown
How this service works
DNS CNAME record lookup for a hostname: the alias target chain, TTL, and a dangling-CNAME check (target does not resolve, a subdomain-takeover risk indicator). Asset inventory and security hygiene. $0.01 per lookup.
Output
Returns the full CNAME alias target chain (the sequence of canonical names until a final target), the TTL of the record, and a boolean dangling-CNAME indicator that flags whether the terminal target fails to resolve — a signal for potential subdomain takeover vulnerability.
Example use cases
Subdomain takeover risk audit
“Check the CNAME record for api.mycompany.com — I want to know the full alias chain, the TTL, and whether the target actually resolves so I can tell if it's vulnerable to subdomain takeover.”
Asset inventory CNAME mapping
“Look up the CNAME record for shop.mybrand.com so I can document what it's aliased to and whether the target is live — I'm building a DNS asset inventory.”
Security hygiene scan for acquired domain
“We just acquired a company and I need to check if any of their subdomains like cdn.acquired-co.com have dangling CNAMEs pointing nowhere — can you look up the CNAME record and tell me if it's at risk?”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/dns/cnameWhen to prefer
Choose this endpoint when you specifically need CNAME alias chain resolution combined with a dangling-CNAME security check — particularly useful for security hygiene audits, subdomain takeover risk detection, and DNS asset inventory. If you need A, MX, and TXT records in one call, prefer the general dns-lookup sibling endpoint instead.
Side effects
- Hostname has no CNAME record (returns empty or not-found response)
- Network error reaching the DNS resolver
- Invalid or malformed hostname input
- Transient DNS resolution failure producing false dangling-CNAME positive
- Payment failure if x402 microtransaction is not completed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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