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WHOIS & Domain Lookup: RDAP, DNS, Subdomains, SSL, $2/1k

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Bulk domain lookup verified by 94 passing tests: RDAP registration (registrar, created, expires, age), DNS over HTTPS (A, AAAA, MX, NS, TXT with SPF and DMARC parsed), subdomains from certificate transparency, SSL expiry and HTTP security headers. $0.002 per domain.

Pricing

Pay per event

Rating

0.0

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Developer

Detroit Web Agent - Open Data

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Total users

Monthly active users

3 hours ago

Last modified

Subdomain attack surface map

Vendor security posture check

WHOIS lookup API: RDAP, DNS and subdomains for a 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.

George Kioko

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.

Pono Data

Bulk Domain Availability Checker + WHOIS (RDAP) Lookup

bridgeworks/domain-checker

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.

Bridgeworks

WHOIS Domain Lookup — Registrar, Age, Expiry & DNS (Bulk)

ntriqpro/whois-domain-lookup

Look up WHOIS records for hundreds of domains in a single run: registrar, creation and expiry dates, domain age, days until expiry, nameservers, DNSSEC and status codes. Public registry data for every major TLD (.com, .org, .io, .co.uk and more) — no API keys, structured JSON/CSV output.

daehwan kim

Domain Checker — WHOIS, DNS & SSL Lookup API

vivid_astronaut/domain-checker

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.

BRAINIALL Team

GuardHawk — Domain Security Audit: SSL, DNS, Takeover Risk

inexhaustible_glass/domain-health-audit

Full domain security audit in one call: SSL/TLS, DNS, SPF/DKIM/DMARC, security headers, WHOIS, blacklist, tech stack — PLUS subdomain-takeover risk and public S3-bucket exposure detection, which no other domain-audit tool checks. Returns a 0-100 health score + fix list. No API key, no login.

Hitman studio

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.

Ava Torres

Domain Intelligence (RDAP and DNS)

agentictools/domain-intelligence

Bulk domain lookups over official RDAP registry data plus live DNS records. Registrar, dates, status, nameservers, DNSSEC, and A, MX, NS, TXT records.

Ken Agland

Domain Intelligence MCP — DNS, WHOIS & SSL for AI Agents

nexgendata/domain-intelligence-mcp-server

MCP server exposing DNS, WHOIS, IP geolocation and SSL checks as agent tools. Connect Claude, Cursor, n8n or the OpenAI Agents SDK to live domain data.

NexGenData

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.