Alternatives to Whois.com Lookup

A free web lookup for domain and IP registration details such as owner, registrar and expiry. The listings below can replace it for an important use case. Each note says what changes if you switch.

  • Whois.com Lookup

    A free web lookup for domain and IP registration details such as owner, registrar and expiry.

    FreeProprietaryWeb

Replacements

Listings that take over the same core job as Whois.com Lookup.

  • Who.is

    A web lookup for WHOIS, RDAP, DNS records, nameservers and IP ownership of any domain.

    FreemiumProprietaryWeb

    Who.is adds RDAP, DNS records, reverse nameserver lookup and an API alongside WHOIS, with optional paid monitoring and paid reports for full domain history.

  • ICANN Lookup

    ICANN's web tool for looking up registration data for domain names and Internet number resources.

    FreeProprietaryWeb

    ICANN Lookup is run by ICANN rather than a registrar, uses RDAP instead of WHOIS, and covers IP and number resources, with no DNS or mail diagnostics.

  • DomainTools Whois Lookup

    A web-based WHOIS lookup for researching domain ownership, IP address history and domain availability.

    FreemiumProprietaryWeb

    DomainTools Whois Lookup adds IP history, reverse WHOIS and DNS history for investigations, though the free tier is limited and historical lookups are aimed at paying users.

  • Whoxy

    A WHOIS lookup site and pay-as-you-go API with WHOIS history and reverse WHOIS search.

    FreemiumProprietaryWeb

    Whoxy offers WHOIS history and reverse WHOIS by owner, email or keyword with pay-as-you-go pricing, and is built mainly around a paid API for developers.

  • ViewDNS.info

    A web collection of more than 20 DNS, IP and domain lookup tools, with a paid API.

    FreemiumProprietaryWeb

    ViewDNS.info bundles more than 20 DNS, IP and WHOIS tools with IP history and reverse WHOIS, and some features need an account while the API is paid.

Similar software

Related functionality, not a direct replacement.

  • DNSsy

    A free website that tests a domain's DNS health and offers live DNS, reverse, WHOIS and ping lookups.

    FreeProprietaryWeb

  • DNSChecker

    A web tool that checks DNS propagation by querying public resolvers in many countries.

    FreeProprietaryWeb

  • intoDNS

    A free web tool that checks a domain's DNS and mail server health and configuration.

    FreeProprietaryWeb

  • Cisco Talos Reputation Center

    Online lookup for Cisco Talos reputation and threat intelligence on IP addresses and domains.

    FreeProprietaryWeb

  • MXToolbox

    A web-based suite of DNS, MX, SPF, DMARC and blacklist lookups for diagnosing email delivery.

    FreemiumProprietaryWeb

  • bgp.tools

    A web tool for exploring BGP routing, ASNs, prefixes and peering, with paid network monitoring.

    FreemiumProprietaryWeb