# DNS TXT Lookup for secure.<domain> Subdomain

> DNS TXT Lookup for secure.<domain> 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 TXT DNS record for the 'secure' subdomain of a given domain via Cloudflare DoH and reports existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/secure/txt?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-txt-lookup-for-secure-domain-subdomain-f1a14645
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V7f8_RWuUg3cKA4KjzeJ5

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-txt-lookup-for-secure-domain-subdomain-f1a14645
```

Example prompt: Can you look up the TXT DNS record for the 'secure' subdomain of rallylive.ca and tell me if it exists, what the record says, and its TTL?

## When to prefer this

Use this endpoint when you need a quick, targeted existence check and TXT record retrieval for specifically the 'secure' subdomain of a domain, without needing to enumerate all subdomains. Prefer it over general DNS tools when you already know you want the 'secure' host and want a lightweight, pay-per-use lookup via Cloudflare DoH.

## Known failure modes

- Domain does not exist — returns non-existence indicator with no records
- secure subdomain has no TXT record — returns empty record set
- Malformed domain input — may return error or empty result
- Cloudflare DoH unreachable — upstream timeout or error
- Rate limiting or payment failure — 402 or 429 response

## How this service works

TXT record of secure.<domain>: looks up the secure host under the domain you give (TXT via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like secure without enumerating subdomains. $0.01 per lookup.

## Output

Returns whether the TXT record for secure.<domain> exists, the raw TXT record values (if any), and the TTL of the record as resolved via Cloudflare DNS over HTTPS.

## 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-txt-lookup-for-secure-domain-subdomain-f1a14645/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)