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DNS A Record Lookup for FTP Subdomain
x402
DNS A Record Lookup for FTP 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 2026-10-21).
Looks up the A record of the ftp.<domain> subdomain via Cloudflare DoH and reports whether it exists, its IP records, and TTL.
Price / call$0.01
Success—
StatusUnknown
How this service works
A record of ftp.<domain>: looks up the ftp host under the domain you give (A via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like ftp without enumerating subdomains. $0.01 per lookup.
Output
Returns whether the ftp.<domain> A record exists, the resolved IP address(es), the TTL value, and the DNS response code (e.g. NOERROR or NXDOMAIN), as answered by Cloudflare DNS over HTTPS.
Example use cases
Verify FTP server exists before connecting
“Does ftp.mycompany.com actually exist? Look up its DNS A record and tell me the IP address and TTL so I know if there's a real FTP host configured there.”
Domain infrastructure audit
“I'm auditing the infrastructure for acme.org — can you check if they have an FTP subdomain set up by looking up the A record for ftp.acme.org?”
Pre-deployment FTP host validation
“Before I configure my FTP client, can you check whether ftp.uploadserver.net resolves to anything? I need to know if the DNS A record exists and what it says.”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/host/ftp/a?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, targeted check on whether an ftp.<domain> host is configured in DNS without enumerating all subdomains. Prefer it over general DNS resolvers when you want a structured, paid API response with clear existence signals and TTL data for specifically the FTP common subdomain pattern.
Side effects
- Domain does not exist — returns NXDOMAIN with no records
- FTP subdomain not configured — exists flag false, empty records
- Invalid domain format — request may fail or return error
- Cloudflare DoH unavailable — upstream resolution failure
- Network timeout reaching DoH resolver
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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