# DNS Propagation Checker

> DNS Propagation Checker is a paid API for AI agents from 164.160.90.241.sslip.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-12).

Resolve a DNS record across multiple public DNS-over-HTTPS resolvers (Cloudflare, Google, AliDNS) and compare the answers to verify propagation status.

## Facts

- Endpoint: GET https://164.160.90.241.sslip.io/api/dev-dns-propagation-checker?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-propagation-checker-48e6b036
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y_st71Op9X51SJCIbILgp

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-propagation-checker-48e6b036
```

Example prompt: Can you check whether the A record for mybusiness.com has propagated across Cloudflare, Google, and AliDNS yet?

## When to prefer this

Choose this endpoint when you need to verify DNS propagation across multiple globally distributed resolvers simultaneously rather than querying a single DNS server. It is ideal for post-migration checks, confirming new records are live, troubleshooting inconsistent DNS resolution, or validating domain ownership TXT records. Prefer it over single-resolver DNS lookups when cross-resolver consistency is the question being answered.

## Known failure modes

- Invalid or non-existent domain name returns NXDOMAIN or empty result
- Unsupported record type may return an error or empty response
- Resolver timeouts if a DNS-over-HTTPS provider is temporarily unavailable
- Missing required 'name' query parameter causes a validation error
- Domain still in TTL window may show inconsistent answers across resolvers, which is expected behavior not an API failure

## How this service works

Resolve a DNS record across several public DNS-over-HTTPS resolvers (Cloudflare, Google, AliDNS) and compare answers to check propagation.

## Output

Returns DNS query results for the specified domain and record type from multiple public DNS-over-HTTPS resolvers (Cloudflare, Google, AliDNS), including the resolved answers from each resolver and a comparison indicating whether the record is consistently propagated or still diverging across resolvers.

## 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",
     "required": [
      "name"
     ],
     "properties": {
      "name": {
       "type": "string",
       "description": "Domain name"
      },
      "type": {
       "type": "string",
       "description": "Record type: A, AAAA, MX, TXT, CNAME, NS"
      }
     }
    }
   },
   "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-propagation-checker-48e6b036/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 164.160.90.241.sslip.io](https://www.zero.xyz/host/164.160.90.241.sslip.io/llms.txt)