# DNS SOA Lookup via AdGuard DNS (DoH)

> DNS SOA Lookup via AdGuard DNS (DoH) is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).

Queries SOA records for a domain through AdGuard DNS over HTTPS, returning records, TTL, response code, DNSSEC validation status, and resolver answer time.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/soa/via/adguard?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-soa-lookup-via-adguard-dns-doh-b94252c4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7hmpqgKVhicRed2qHaq15

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability dns-soa-lookup-via-adguard-dns-doh-b94252c4
```

Example prompt: What does AdGuard DNS return for the SOA record of example.com — I want to see the TTL, response code, whether DNSSEC was validated, and how fast the resolver answered.

## When to prefer this

Choose this endpoint when you specifically want to observe how AdGuard DNS resolves a domain's SOA record — especially useful for comparing against other resolvers (e.g. DNSPod, NextDNS, CleanBrowsing) to detect propagation lag, resolver-level filtering, split-horizon differences, or DNSSEC validation behavior differences per resolver.

## Known failure modes

- NXDOMAIN returned if domain does not exist
- SERVFAIL returned if AdGuard cannot resolve or encounters an upstream error
- Empty records if domain has no SOA record published
- Timeout or network error if AdGuard DoH endpoint is unreachable
- Payment failure if insufficient USDC balance for x402 micropayment

## How this service works

SOA records for a domain as answered by AdGuard DNS (DNS over HTTPS): the records, TTL, response code (NOERROR/NXDOMAIN/SERVFAIL), whether the resolver validated DNSSEC, and the resolver's answer time. Compare resolvers to spot propagation lag, filtering or split-horizon answers. $0.01 per lookup.

## Output

Returns the SOA record(s) for the queried domain as answered by AdGuard DNS over HTTPS, including the record data, TTL, DNS response code (NOERROR, NXDOMAIN, or SERVFAIL), whether the resolver performed DNSSEC validation, and the resolver's answer latency.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dns-soa-lookup-via-adguard-dns-doh-b94252c4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.intel.rallylive.ca](https://www.zero.xyz/host/dns.intel.rallylive.ca/llms.txt)