WHOIS Domain Lookup — Bulk Registrar, Expiry & Contact avatar

WHOIS Domain Lookup — Bulk Registrar, Expiry & Contact

Pricing

from $3.00 / 1,000 result returneds

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WHOIS Domain Lookup — Bulk Registrar, Expiry & Contact

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

from $3.00 / 1,000 result returneds

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0.0

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Developer

Hojun Lee

Hojun Lee

Maintained by Community

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Bookmarked

3

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2

Monthly active users

a month ago

Last modified

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Security

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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

FieldTypeDescriptionDefault
domainsstring[]Domains to look up (e.g. example.com)—
csvUrlstringURL to a CSV file of domains (alternative to domains)—
csvColumnstringColumn name holding the domain in the CSVdomain
maxDomainsintegerMax domains per run (1–1000)100
concurrencyintegerParallel lookups (kept low — WHOIS servers rate-limit aggressively)3
delaySecondsnumberDelay between lookups1.0

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.