Domain API

Whether a domain is available to register.

Check whether a domain is registered. Core returns available from the registration check · true if unregistered, false if taken, null if the registry couldn't be reached.

Registered answers are reused for up to one hour; unregistered answers for up to five minutes. Expired answers require a new check. An unregistered result does not guarantee that a registrar will sell the name.

On paid plans, ?deep=true adds the registrar, registration dates, and status. For DNS records and TTLs on every plan, use DNS. For mail hosts alone, use MX.

Lookup

GET

api.parseapi.com/domain/{domain}

Available to register. Deep adds registration details

Explore

Parameters 2

domainstring · path · required: Domain name
deepboolean · query · optional: When true, include optional detail in deep. Access depends on the endpoint: pooled detail, an included paid-plan profile, or a metered check. Core values stay unchanged.

SDK quickstart

import { parseAPI } from '@parseapi/sdk';

const parse = parseAPI("YOUR_API_KEY");
const result = await parse.domain("gmail.com");
console.log(result);

Run on your server with a secret key. Calling from a browser or app?

Example response

{
  "domain": "gmail.com",
  "available": false
}

Response fields

domainstring: Hostname checked
availableboolean or null: true if unregistered, false if taken, null if the registration check is unavailable

Deep

On paid plans, deep.registration adds the registrar, registration dates, status and DNSSEC flag. Dates and the registrar can be null. Unregistered domains include only registered: false. Registration is omitted when the check is unavailable. Deep uses the same cached check as core.

Run this Deep example with your own key. Check this API's access requirements and pricing before running.

SDK quickstart

import { parseAPI } from '@parseapi/sdk';

const parse = parseAPI("YOUR_API_KEY");
const result = await parse.domain("gmail.com", { deep: true });
console.log(result);

Run on your server with a secret key. Calling from a browser or app?

Example response

{
  "domain": "gmail.com",
  "available": false,
  "deep": {
    "registration": {
      "registered": true,
      "created": "1995-08-13T04:00:00.000Z",
      "updated": "2026-07-11T10:11:23.000Z",
      "expires": "2027-08-12T04:00:00.000Z",
      "registrar": "MarkMonitor Inc.",
      "status": [
        "client delete prohibited",
        "client transfer prohibited",
        "client update prohibited",
        "server delete prohibited",
        "server transfer prohibited",
        "server update prohibited"
      ],
      "dnssec": false
    }
  }
}

Deep fields

deep.registrationobject: Registration check details. Unregistered domains include registered: false and omit the other details. Omitted when the check is unavailable
deep.registration.registeredboolean: Whether the domain was registered at the cached check. False does not guarantee a registrar will sell it
deep.registration.createdstring or null: Registry registration timestamp, or null when unknown. Omitted for an unregistered domain
deep.registration.updatedstring or null: Registry last-change timestamp, or null when unknown. Omitted for an unregistered domain
deep.registration.expiresstring or null: Registry expiration timestamp, or null when unknown. Omitted for an unregistered domain
deep.registration.registrarstring or null: Reported registrar name, or null when unknown. Omitted for an unregistered domain
deep.registration.statusarray: Reported registration status codes. Empty when none are reported. Omitted for an unregistered domain
deep.registration.dnssecboolean: Whether the registry reports a signed DNS delegation. Omitted for an unregistered domain

Questions? Email

Domain API

Lookup#

Deep#

Lookup

Deep