Domain Connect Checker API Reference
Endpoint reference for GET /v1/tools/domain-connect-checker: parameters, JSON response schema, error codes, and per-IP rate limits. No API key required.
https://api.domainee.dev/v1/tools/domain-connect-checker?domain=example.comCheck whether a domain's DNS provider implements the Domain Connect protocol, read live from the _domainconnect TXT record and the provider's settings endpoint. Reports the provider and whether it offers the synchronous flow (the one that works without per-provider onboarding) or only the asynchronous OAuth flow.
Free. No API key required. CORS-enabled. Rate-limited per IP at 30/min and 500/day.
Parameters
| Name | In | Type | Description |
|---|---|---|---|
domainrequired | query | string | Domain to check. The zone apex is used for discovery. example: example.com |
Example request
curl -s "https://api.domainee.dev/v1/tools/domain-connect-checker?domain=example.com" | jqExample response
{
"ok": true,
"data": {
"domain": "example.com",
"supported": true,
"discoveryHost": "api.domainconnect.example-dns.com",
"dnsProvider": "Example DNS",
"providerId": "example-dns.com",
"flows": {
"synchronous": true,
"asynchronous": false
}
}
}Other languages
const res = await fetch("https://api.domainee.dev/v1/tools/domain-connect-checker?domain=example.com");
const { ok, data } = await res.json();import requests
r = requests.get(
"https://api.domainee.dev/v1/tools/domain-connect-checker",
params={"domain":"example.com"},
)
data = r.json()["data"]Rate limits & errors
- 30 requests/minute and 500 requests/day per IP. Exceeding either returns HTTP 429 with a
Retry-Afterheader. - All responses are JSON with the envelope
{ "ok": true, "data": {...} }on success or{ "ok": false, "error": { "code", "message" } }on failure. codevalues are stable; safe to switch on programmatically.messageis human-friendly and may change.
Interpreting supported
supported: true means the domain's DNS provider implements the Domain Connect
protocol. It does not mean a given service can use it: the provider only applies
templates it has already synced from the shared
Domain-Connect/Templates repository, so
the service also needs a published, merged and synced template.
Treat the flows object as the practical answer. synchronous: true is the case worth
building around, since it needs no per-provider onboarding and exchanges no token.
A provider offering only the asynchronous flow requires an explicit OAuth setup with
that provider before one-click works.
See also
- Domain Connect Checker visual tool — UI version that hits this same API.
- DNS Provider Lookup — for the roughly half of domains where Domain Connect is unavailable.
- Free APIs overview — rate limits, response envelope, error codes.