Bulk Domain Availability Checker (RDAP) - Name x TLD

Find which domains are free in seconds. Type your brand ideas, pick the extensions, and get available / registered for every combination. For taken domains, you also get the registrar and expiry date.

• Name x TLD generator. Enter acme and my new brand with .com .io .ai .fr, and the Actor checks all 8 combinations. Spaces become hyphens and accents are removed (café becomes cafe).
• Official registry data. Each domain is checked against its registry's RDAP server, the official successor of WHOIS, through the IANA bootstrap file. It covers 1,200+ TLDs, including .com, .net, .org, .io, .co, .ai, .app, .dev, .fr, .de, .uk, .ch, .nl, .us, .ca and .au. TLDs without a public RDAP server (.eu, .it, .es, .be...) fall back to a DNS check.
• Know when a taken domain expires. Registrar, creation date, expiry date and days to expiry come in the same row. This helps you plan a backorder or contact the owner through the registrar.
• No result, no charge. Invalid inputs and registry errors are returned but not billed.

What can I use it for?

• Naming a startup, product or app: test 50 names x 10 extensions in one run.
• Brand protection: check which variants of your brand are still free to register.
• Domain investing: list the expiry dates of the names you are watching.
• AI agents: give an agent a check_domain tool through the Apify MCP server (see below).

Input

{
    "names": ["acme", "my new brand"],
    "tlds": ["com", "io", "ai", "fr"],
    "domains": ["example.org"],
    "includeRegistrationDetails": true
}

You can use names + tlds, domains, or both. Duplicates are removed. If tlds is empty, the default list is used: com, net, org, io, co, ai, app, dev, fr, de, uk.

Output

One row per domain. Example from a real run:

[
    { "domain": "apify.io", "available": false, "status": "registered", "method": "rdap", "registrar": "Cloudflare, Inc", "createdAt": "2021-04-20T14:38:37.053Z", "expiresAt": "2028-04-20T14:38:37.053Z", "daysToExpiry": 558, "statuses": ["client transfer prohibited"] },
    { "domain": "zz-quiet-otter-7731.com", "available": true, "status": "available", "method": "rdap" },
    { "domain": "zz-quiet-otter-7731.eu", "available": null, "status": "likely_available", "method": "dns" }
]

status	Meaning
available	The registry has no record of the domain (RDAP).
registered	The domain is taken. With RDAP, registrar and dates are included.
likely_available	The TLD has no public RDAP server, and the domain does not exist in DNS. Confirm with a registrar before you rely on it.
unknown	The registry did not answer (see error). Not billed.
invalid	The input is not a valid domain. Not billed.

available: true means the registry has no registration for the name. Premium or reserved names can still be refused or priced higher by registrars.

Pricing

$0.001 per domain checked ($1 per 1,000 domains), plus Apify's small run-start fee. There is no subscription. Invalid inputs and failed lookups are free.

Speed and fair use

Registry RDAP terms forbid high-volume automated querying, except when it is reasonably needed to register domain names. This Actor sends at most one request per second to each registry. Different TLDs are checked in parallel, so 10 names x 6 extensions take about 10 seconds. A long list on a single TLD runs at about 3,600 domains per hour.

Registrant contacts are never read or returned: the output contains no personal data.

Use it from AI agents (MCP)

Add domain-availability-checker to the Apify MCP server in your MCP client (Claude, Cursor, VS Code...). Your agent can then check names while brainstorming.

Integrations

Apify API, schedules, webhooks, Make, Zapier, n8n. Export as JSON, CSV, Excel or HTML.

Related tools

Same developer, same pay-per-result pricing, outputs that chain together:

• Bulk WHOIS Lookup: registrar, creation and expiry dates, DNS and mail provider of domain lists.
• Email Security Checker: SPF, DKIM, DMARC and MTA-STS of domains, with a grade.
• Website Logo & Favicon Extractor: logo, favicon and social image of company websites.

FAQ

Is RDAP the same as WHOIS? Yes. RDAP is the standardized JSON replacement for WHOIS, run by the same registries.

Need DNS, SPF, DMARC or SSL data for taken domains? Use WHOIS & DNS Domain Lookup, which runs on the same engine.

Something wrong or missing? Open an issue on the Issues tab.