Bulk Domain WHOIS & RDAP Lookup: Age, Expiry, Registrar, Availability & DNS

Look up hundreds or thousands of domains at once and get clean, structured registration data: registrar, creation date, domain age, expiry date and days until expiry, status locks, nameservers, and DNSSEC. It also tells you whether each domain is available to register. You can optionally add live DNS records (A, AAAA, MX, NS, TXT, CNAME, SOA, CAA) in the same run.

The Actor uses RDAP, the official IETF/ICANN-standard replacement for WHOIS, querying each registry's own RDAP server through the IANA bootstrap registry. You get JSON-native, consistent data instead of fragile parsed WHOIS text, and you don't need an API key.

Why this Actor

• Fast: 100 domains with DNS in about 40 seconds in our tests.
• Consistent schema across .com, .net, .org, .io, .co, .ai, .app, .dev, .uk, and hundreds of other TLDs.
• Expiry monitoring built in: filter to domains expiring within N days.
• Availability check: filter to unregistered domains only, which is ideal for brand-name and domain-investor workflows.
• Thin-registry aware: for .com/.net it also queries the registrar's RDAP server for extra detail.
• Fair billing: domains filtered out by your filters, and lookups that return nothing, are not charged.

Use cases

• Domain portfolio management: track expiry dates and transfer locks across all your domains, and schedule a weekly run to get alerts.
• Domain investing and brand naming: bulk-check which name ideas are still available.
• Lead scoring and fraud checks: domain age is a strong trust signal, since newly registered domains are riskier.
• Security and brand protection: monitor look-alike domains, nameserver changes, and DNSSEC.
• Sales enrichment: add registrar, domain age, and email provider (from MX) to your lead lists.

Input

{
  "domains": ["stripe.com", "https://www.apify.com/store", "bbc.co.uk", "my-new-brand-idea.io"],
  "includeDns": true,
  "dnsRecordTypes": ["A", "AAAA", "MX", "NS", "TXT"],
  "resultFilter": "all",
  "expiringWithinDays": 0
}

Field	Description
domains	Domains or URLs, one per line. Subdomains are reduced to the registrable domain (shop.lego.com → lego.com), and duplicates are removed.
includeDns / dnsRecordTypes	Fetch live DNS records via DNS-over-HTTPS.
followRegistrar	Also query the registrar's RDAP server for thin registries (.com/.net).
resultFilter	all, registered, or available.
expiringWithinDays	Only output domains expiring within N days (0 = off).
maxConcurrency	Parallel lookups (default 5, which keeps registries happy).

Output example

{
  "domain": "stripe.com",
  "tld": "com",
  "isRegistered": true,
  "dataSource": "rdap",
  "registrar": "SafeNames Ltd.",
  "registrarIanaId": "447",
  "registrarUrl": "http://www.safenames.net",
  "registrarAbuseEmail": "abuse@safenames.net",
  "registrarAbusePhone": "+44.1908200022",
  "createdAt": "1995-09-12T04:00:00Z",
  "updatedAt": "2025-10-01T01:39:51Z",
  "expiresAt": "2027-09-11T04:00:00Z",
  "domainAgeDays": 11342,
  "daysUntilExpiry": 344,
  "status": ["client transfer prohibited", "server transfer prohibited", "…"],
  "transferLocked": true,
  "nameservers": ["ns-1087.awsdns-07.org", "ns-1882.awsdns-43.co.uk", "ns-423.awsdns-52.com", "ns-705.awsdns-24.net"],
  "dnssec": false,
  "dns": {
    "A": ["198.137.150.231", "198.202.176.231"],
    "MX": ["aspmx.l.google.com", "alt1.aspmx.l.google.com"],
    "NS": ["ns-1087.awsdns-07.org", "…"],
    "TXT": ["MS=ms80697640", "…"]
  },
  "rdapUrl": "https://rdap.verisign.com/com/v1/domain/stripe.com",
  "error": null,
  "checkedAt": "2026-10-02T00:17:28.485Z"
}

An unregistered domain returns "isRegistered": false.

Pricing

You pay per domain looked up, with no start fee. See the Pricing tab for the current price. Domains removed by your filters, and lookups that return no data, are free. Set "Maximum cost per run" to cap spend.

FAQ

Why RDAP instead of WHOIS? ICANN made RDAP the authoritative source for gTLD registration data. It returns structured JSON with standardized fields, so you don't have to rely on fragile, registry-specific WHOIS text formats.

Does it return the registrant's name, email, or address? No. Since GDPR, most registries redact registrant data. This Actor deliberately returns no personal contact data, only registrar-level (business) information.

Which TLDs are supported? Every TLD whose registry publishes an RDAP service (all gTLDs such as .com/.net/.org/.app/.dev/.xyz, plus many ccTLDs including .uk, .ca, .au, .fr, .nl, .in, .br, .ai, .io, .co, .me, .us, .ly, and .so). For TLDs whose registry has no RDAP service (e.g. .de, .jp, .es, .it), you still get DNS records, and isRegistered is inferred from NS records (dataSource: "dns").

How accurate is "available"? isRegistered: false means the registry's own RDAP server has no record of the domain. Premium or reserved names may still be unavailable at a registrar, so always confirm at checkout.

Can I monitor expiring domains automatically? Yes. Save your list, set expiringWithinDays (e.g. 60), create a weekly Schedule, and connect an email, Slack, or webhook integration.