Domain Availability Checker: Bulk WHOIS / RDAP Lookup

Check thousands of domains at once: available or registered, plus registrar, creation and expiry dates, days until expiry, and nameservers. Check a name across many TLDs, or find domains expiring soon. Uses official RDAP, the modern WHOIS. Free.

WHOIS Lookup: Domain WHOIS via RDAP, Age, Expiry, Registrar

thoob/rdap-domain-lookup

Input a list of domains, get registration data from official IANA RDAP servers (the structured-JSON successor to WHOIS): registrar, key dates, status codes, nameservers, DNSSEC, and abuse contact. Clean fields, no mangled WHOIS text. Billed only per resolved domain.

Domain Age Checker — Bulk RDAP + WHOIS Lookup

prodiger/domain-age-checker

Bulk-check domain age, registration date, expiry, registrar, nameservers, DNSSEC, and EPP status codes via IANA-bootstrapped RDAP with port-43 WHOIS fallback for ccTLDs (.de, .ru, .jp, .kr, .cn, .it, .br, .es, .pl, .nl).

WHOIS Lookup

superlativetech/whois-lookup

WHOIS domain registration data for any domain. Registrar, expiry dates, domain age, registrant, nameservers, DNSSEC. Domain ownership enrichment for lead scoring, expiry monitoring, fraud detection, and due diligence. Batch thousands or query one instantly via Standby API.

Domain Registration Lookup Scraper

automation-lab/domain-rdap-lookup

Look up domain registration, registrar, status, nameserver, and expiry data through authoritative public RDAP services.

Look up many domains at once over RDAP, the official successor of WHOIS: expiry, creation and update dates, registrar, nameservers, status codes and DNSSEC. No registrant or contact data. Unregistered and failed lookups are free.

Domain Availability Checker (bulk)

bgfc97/domain-availability-checker

Check in bulk whether domains are available or already registered, via official RDAP. Expand a name across many TLDs, or pass a domain list. Shows expiry and registrar for taken ones. For domainers and brand protection. No key, no proxy.

Bulk Domain Checker: WHOIS Lookup, DNS, SSL & HTTP

aiqlabs/bulk-domain-checker

Check a list of domains in one run: DNS records, mail provider from MX, SPF/DMARC, HTTP status and full redirect chain, SSL certificate expiry, and WHOIS/RDAP registration - plus a plain-English issue list per domain. No API keys.

Check thousands of domains at once: available or registered, registrar, creation and expiry dates, days to expiry, nameservers, EPP status, DNSSEC. Uses official registry RDAP (the WHOIS successor) for 1,200+ TLDs, plus name-idea x TLD generator. No API key.

Domain Availability Checker — Bulk DNS & WHOIS Lookup

automation-lab/domain-availability-checker

Check exact domain names in bulk and return available/registered verdicts with DNS/WHOIS method, registrar, creation/expiry dates, name servers, timing, and errors in structured JSON.