Whois RDAP Lookup & Domain Ownership Checker API

Bulk WHOIS Lookup: Domain Age, Expiry, Registrar

thoob/rdap-domain-lookup

Looks up domain registration data through 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.

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 Age History Checker — WHOIS & Wayback Lookup

perryay/domain-age-history-checker

Check the registration age and history of any domain using WHOIS data and Wayback Machine archives. Returns creation date, expiration date, registrar, DNS records, domain age in days/years, and oldest archived snapshot. Supports single and batch mode up to 50 domains.

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 Domain Lookup & Availability - Bulk RDAP KYB API

pink_comic/whois-domain-lookup

Bulk WHOIS/RDAP domain lookup for KYB, merchant risk, and vendor checks. Return registration status, domain age, expiry, registrar, DNS evidence, and cautious availability signals for naming, onboarding, and monitoring. Related: Company Enrichment, Business Entity Search.

Check domain availability and fetch WHOIS records, DNS records, and SSL certificate details in one call. Supports bulk domain lists — useful for domain research, brand monitoring, and infrastructure audits.

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.

Company Emails Finder — Find Business Emails by Domain

dev00/domain-email-finder-api

Instantly scrape and extract all publicly associated email addresses connected to a specific domain name.

Adobe OSINT Email Lookup & Profile Picture Extractor API

dev00/adobe-email-osint-api

Verify if an email exists on Adobe, extract high-resolution profile images, and retrieve account statuses instantly.

WHOIS Lookup

automation-lab/whois-lookup

WHOIS Lookup queries WHOIS servers for domain registration data. It returns structured information about who registered the domain, when it was created, when it expires, which registrar manages it, and the name servers it uses.