🌐 WHOIS Domain Lookup — Cheapest & Most Reliable, Bulk

Bulk WHOIS / RDAP domain lookup — get the registrar, IANA id, creation / updated / expiry dates, nameservers, DNSSEC, status and registry handle for a whole list of domains in one run. Powered by the modern public RDAP protocol, with an automatic port-43 WHOIS fallback for country TLDs. No API key, no login.

🕒 Last updated: 2026-07-09 · 🔌 RDAP + port-43 WHOIS fallback · 🚫 No API key or login · 💵 $2 / 1,000 domains · ⚡ IANA-bootstrapped, direct to each registry

Look up thousands of domains at once and get clean, structured registration metadata back — the kind of data domain investors, brand-protection, threat-intel, and SEO teams check constantly. This Actor uses RDAP (the JSON successor to legacy WHOIS) and bootstraps the authoritative RDAP server for each TLD straight from IANA, so you go direct to the registry (Verisign for .com, etc.). For the handful of country TLDs that don't run RDAP (like .de), it automatically falls back to a raw port-43 WHOIS query. Export to JSON, CSV, Excel, or Google Sheets, or pull via API.

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What it does

• 📋 Bulk lookups — paste a list of domains (or full URLs — the host is extracted) and get one clean record per domain.
• 🛰️ Straight to the registry — bootstraps each TLD's authoritative RDAP server from IANA, so results are as fresh and canonical as it gets.
• 🔁 RDAP + WHOIS fallback — RDAP first (structured JSON); if a ccTLD has no RDAP, it falls back to the registry's port-43 WHOIS server and normalizes the text into the same fields.
• 🔑 No key, no login — RDAP and WHOIS are public. A datacenter proxy rotates IPs per retry to glide past registry rate-limits.

📊 Output fields

Field	Description
domain	the looked-up domain
source	rdap or whois (which protocol answered)
registrar	sponsoring registrar name
registrar_iana_id	registrar's IANA id
registrar_url	registrar website
registrar_abuse_email / registrar_abuse_phone	registrar abuse contact
status	EPP domain statuses (e.g. clientTransferProhibited)
nameservers	authoritative nameservers
dnssec	whether the delegation is DNSSEC-signed
domain_handle	registry domain id
created_at / updated_at / expires_at	registration, last-changed, and expiry dates (ISO 8601)
error	why a lookup failed (null on success; failed rows are not billed)
raw	full raw RDAP JSON / WHOIS text (optional)

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Who it's for

• 💰 Domain investors & brokers — bulk-check expiry dates and registrars across a portfolio or a drop list.
• 🛡️ Brand protection & threat intel — pull registration age, registrar, and nameservers on lookalike/suspicious domains.
• 📊 SEO & research teams — enrich a list of domains with registrar, age, and DNS metadata.
• 🛠️ Developers — a no-key WHOIS/RDAP endpoint you can schedule and pull via API into any pipeline.

How to use it

1. Click Try for free.
2. Paste your domains, one per line (URLs work too — the host is extracted).
3. Click Start, then export from the Dataset tab, or pull via API.

Examples

Look up a batch of domains:

{ "domains": ["google.com", "cloudflare.com", "apify.com", "openai.com"] }

RDAP only (skip the WHOIS fallback), with raw responses attached:

{ "domains": ["example.org"], "whoisFallback": false, "includeRaw": true }

Pull via API (run-sync):

curl -X POST "https://api.apify.com/v2/acts/scrapersdelight~whois-domain-lookup/run-sync-get-dataset-items?token=YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "domains": ["google.com", "cloudflare.com"] }'

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❓ FAQ

Do I need an API key or login? No — RDAP and WHOIS are public registry protocols. No account, no key.

RDAP or WHOIS? RDAP is the modern, structured (JSON) replacement for legacy WHOIS. This Actor uses RDAP first and only falls back to port-43 WHOIS for ccTLDs that don't run RDAP yet — either way you get the same fields.

Which TLDs are supported? All gTLDs (.com, .net, .org, .io, .app, …) via RDAP, plus ccTLDs — RDAP where available, WHOIS fallback where not. A few registries publish only thin data (e.g. .de returns status + nameservers), so some fields can be empty for those.

Does it return the registrant's name, email, or address? No. This Actor returns domain registration metadata (registrar, dates, nameservers, status, DNSSEC) — not registrant personal contact data, which registries redact under GDPR/ICANN policy anyway.

How much does it cost? $2 per 1,000 resolved domains — you pay only for domains that return data. Lookups that fail (not found / no server) are written to the dataset but not charged.

Can I schedule it? Yes — schedule the Actor to re-check a list on a cadence (e.g. watch expiry dates or nameserver changes).

Are results accurate/fresh? They come straight from each registry's authoritative RDAP/WHOIS server (bootstrapped from IANA), so they're as current as the registry publishes.

Notes & fair use

This Actor reads public RDAP and port-43 WHOIS registry data. It returns domain registration metadata, not registrant personal contact information. You are responsible for complying with each registry's Terms of Service and with applicable data-protection law.