DNS Propagation Checker API

Check if a DNS change has propagated: queries Cloudflare, Google, AdGuard, NextDNS, AliDNS and DNS.SB at once and reports agreement, consensus answer and response times.

Authentication & base URL

Subscribe through one of our marketplace listings; your marketplace API key and base URL are shown there. All endpoints return JSON over HTTPS, served from a global edge network (typically 20–150 ms).

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Endpoints

GET `/v1/dns-propagation`

Check propagation

Parameter	In	Description	Example
`domain` *	query	Domain	`github.com`
`type`	query	A, AAAA, CNAME, MX, NS, TXT, CAA, SOA	`A`

Example

GET /v1/dns-propagation?domain=github.com&type=A

{
  "domain": "github.com",
  "type": "A",
  "propagated": false,
  "agreement": "4/6",
  "consensus": [
    "20.250.119.67"
  ],
  "resolvers": [
    {
      "resolver": "Cloudflare",
      "status": "NOERROR",
      "answers": [
        "20.250.119.67"
      ],
      "ms": 4
    },
    {
      "resolver": "Google",
      "status": "NOERROR",
      "answers": [
        "20.250.119.67"
      ],
      "ms": 38
    },
    {
      "resolver": "AliDNS",
      "status": "NOERROR",
      "answers": [
        "20.29.134.23"
      ],
      "ms": 322
    },
    {
      "resolver": "AdGuard",
      "status": "NOERROR",
      "answers": [
        "20.250.119.67"
      ],
      "ms": 134
    },
    {
      "resolver": "NextDNS",
      "status": "NOERROR",
      "answers": [
        "20.250.119.67"
      ],
      "ms": 68
    },
    {
      "resolver": "DNS.SB",
      "status": "NOERROR",
      "answers": [
        "140.82.121.3"
      ],
      "ms": 119
    }
  ]
}

Check if a DNS change has propagated: queries Cloudflare, Google, AdGuard, NextDNS, AliDNS and DNS.SB at once and reports agreement, consensus answer and response times.

Use cases

Domain migrations, email setup (MX/TXT), DevOps automation, hosting control panels, support tools.

Why this API

Fast: runs on a global edge network, typical response well under 1 second.
Reliable: simple JSON, clear error messages.
Fair pricing: Free plan 500 requests/month, Pro 25,000 for $4.99, Ultra 150,000 for $14.99.

Pricing

Free plan with 500 calls per month, then Pro (25,000 calls for $4.99/month) and Ultra (150,000 calls for $14.99/month). See all plans.