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DNS A Record Lookup for portal Subdomain
x402
DNS A Record Lookup for portal 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 (IPv4) record for the portal.<domain> subdomain via Cloudflare DNS over HTTPS and reports existence, records, and TTL.
Price / call$0.01
Success—
StatusUnknown
How this service works
A record of portal.<domain>: looks up the portal 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 portal without enumerating subdomains. $0.01 per lookup.
Output
Returns whether the portal.<domain> A record exists, the resolved IPv4 address(es), the TTL value, and the DNS response code from Cloudflare DoH.
Example use cases
Verify portal subdomain before onboarding
“Before we send users to the customer portal, can you check whether portal.bigcorp.com actually resolves to an IP address and what TTL it has?”
Monitor competitor portal host existence
“I want to know if portal.rivalcompany.com has a live DNS A record right now — look it up and tell me if it exists and what IP it points to.”
Pre-deployment DNS sanity check
“We just updated DNS — can you confirm that portal.ourstartup.io now has an A record pointing somewhere, and tell me the TTL?”
Technical details
Endpoint
GEThttps://dns.intel.rallylive.ca/dns/host/portal/a?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, targeted existence check for the portal subdomain of a specific domain without doing full subdomain enumeration. Prefer it over generic DNS resolvers when you want a pay-per-use, agent-friendly API that specifically targets the portal host with a simple GET request.
Side effects
- Domain does not exist (NXDOMAIN) — returns no records and appropriate response code
- portal subdomain has no A record even though the apex domain exists
- Invalid or malformed domain input — may return an error or empty result
- Cloudflare DoH unreachable — service returns an error
- Rate limiting or payment failure — request rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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