# DNS TXT Record Lookup for img Subdomain

> DNS TXT Record Lookup for img 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 TXT DNS record for the img.<domain> subdomain via Cloudflare DNS over HTTPS and reports existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/img/txt?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-txt-record-lookup-for-img-subdomain-f18f56f6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p6xsSFS0SakQNVi0E56k_

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-record-lookup-for-img-subdomain-f18f56f6
```

Example prompt: Can you check whether img.rallylive.ca has any TXT DNS records configured, and tell me what they are along with the TTL?

## When to prefer this

Use this endpoint when you need a fast, targeted check on whether a specific domain has an img subdomain with TXT records, without running a broad subdomain enumeration. Ideal for single-domain DNS intelligence tasks, security audits, or infrastructure checks where Cloudflare DoH resolution is acceptable. Prefer over general DNS tools when you specifically need the img host TXT record and want a simple pay-per-lookup model.

## Known failure modes

- Domain does not exist — returns NXDOMAIN with no records
- img subdomain has no TXT records — exists but returns empty record set
- Malformed domain input — may return an error or unexpected response
- Cloudflare DoH unreachable — service returns an error
- Rate limiting or payment failure — lookup not performed

## How this service works

TXT record of img.<domain>: looks up the img 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 img without enumerating subdomains. $0.01 per lookup.

## Output

Returns whether the img.<domain> subdomain exists in DNS, its TXT record values (if any), the TTL, and the DNS response code (e.g. NOERROR or NXDOMAIN), 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-record-lookup-for-img-subdomain-f18f56f6/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)