Bulk Domain WHOIS, DNS, Email Security & Availability Checker

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.

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 WHOIS Lookup - Age, Expiry, Registrar, DNS

george.the.developer/domain-whois-lookup

Look up WHOIS data, domain age, expiration date, registrar, nameservers, and DNS records for any domain. Bulk lookup supported.

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.

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.

Bulk WHOIS lookup via official RDAP: registrar, creation and expiry dates, status and nameservers, plus DNS records (A, AAAA, MX, NS, TXT) and SSL expiry. $0.0009 per domain.

DNS Lookup – Bulk DNS Records, MX, SPF & DMARC Checker

gazidev/bulk-dns-lookup

Bulk DNS lookup for thousands of domains: A, AAAA, MX, NS, TXT, CNAME, SOA, CAA records, SPF checker with 10-lookup limit, DMARC policy & rua, DKIM selectors, MTA-STS, BIMI, reverse DNS, change monitoring. Pick resolver: 1.1.1.1, 8.8.8.8 or custom. $1 per 1,000 domains.

Bulk domain lookup from official sources. Registrar, creation date, age and expiry date via RDAP, the modern WHOIS; A, MX, NS, TXT, SPF and DMARC records; and the SSL certificate issuer and days to expiry. $1.50 per 1,000 domains.

Domain OSINT Recon

prooflio/domain-osint-recon

Aggregates WHOIS, DNS records, certificate-transparency subdomains and PTR records for a domain into one structured report.