Domain Intelligence (WHOIS RDAP, DNS, SPF, DMARC, TLS)

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.

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.

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.

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.

Domain Inspector — WHOIS/RDAP, DNS & SSL

hipersoft/domain-inspector

Inspect any list of domains: registrar, registration/expiry dates and status via RDAP; DNS records (A, AAAA, MX, NS, TXT, CNAME); and SSL certificate issuer and expiry. Bulk-ready, no setup. Great for domain portfolios, security audits and lead research.

Domain Intelligence — RDAP, DNS, TLS & Website Checks

gertner-data/domain-intelligence

Enrich domain lists with registration dates, DNS, SPF/DMARC, TLS expiry, redirects and security headers in one JSON. Batch up to 25 domains. Build renewal alerts, email DNS audits and enrichment workflows. Launch price: $1.50/1,000 domain reports.

Bulk domain enrichment: A/AAAA/MX/NS/TXT records, registrar and domain age via RDAP, SSL certificate issuer and expiry, plus mail provider, SPF and DMARC detection. No API keys required.

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.

Bulk email list cleaner using syntax and DNS checks: invalid format, dead domains, missing MX, 9,000+ disposable domains, role accounts (info@, support@), free providers and typo suggestions (gmial.com). No SMTP probing, no API keys.

Audit up to 1,000 public domains for MTA-STS policy reachability, MX coverage, TLS-RPT, DMARC enforcement, SPF record count, MX, and BIMI readiness.