WHOIS Domain Lookup — Bulk Registrar, Expiry & Contact
Pricing
Pay per usage
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WHOIS Domain Lookup — Bulk Registrar, Expiry & Contact
Bulk WHOIS lookups for any domain list. Returns registrar, creation/expiry dates, name servers, registrant info, status codes. CSV input supported. No API key required.
Pricing
Pay per usage
Rating
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Developer
Hojun Lee
Maintained by CommunityActor stats
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Bookmarked
2
Total users
1
Monthly active users
21 hours ago
Last modified
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WHOIS Domain Lookup
Bulk WHOIS lookups for any domain list. Returns registrar, registrant, creation/expiry dates, name servers, status codes, and more. No API key required.
What It Returns
- Registrar — who the domain is registered through
- Creation / expiration / updated dates — plus days until expiry
- Registrant info — name, organization, country (when not privacy-redacted)
- Name servers & status codes
- DNSSEC status
Use Cases
- Domain expiry monitoring — catch expiring domains before a competitor snipes them
- Brand protection — track registrar/ownership changes on watched domains
- Due diligence — verify who actually owns a domain before a deal
- Lead generation — find newly registered domains in a niche
Input
| Field | Type | Description | Default |
|---|---|---|---|
domains | string[] | Domains to look up (e.g. example.com) | — |
csvUrl | string | URL to a CSV file of domains (alternative to domains) | — |
csvColumn | string | Column name holding the domain in the CSV | domain |
maxDomains | integer | Max domains per run (1–1000) | 100 |
concurrency | integer | Parallel lookups (kept low — WHOIS servers rate-limit aggressively) | 3 |
delaySeconds | number | Delay between lookups | 1.0 |
Output
{"domain": "example.com","status": "found","registrar": "RESERVED-Internet Assigned Numbers Authority","registrant_country": "US","creation_date": "1995-08-14T04:00:00","expiration_date": "2027-08-13T04:00:00","days_until_expiry": 315,"name_servers": "A.IANA-SERVERS.NET, B.IANA-SERVERS.NET","status_codes": "clientDeleteProhibited, clientTransferProhibited","checked_at": "2026-10-01T10:00:00Z"}
Pricing
Pay-per-event: $0.003 per domain looked up.