Alternatives to Robtex

A free lookup service for domains, IP addresses, AS numbers and reputation data. The listings below can replace it for an important use case. Each note says what changes if you switch.

  • Robtex

    A free lookup service for domains, IP addresses, AS numbers and reputation data.

    FreeProprietaryWeb

Replacements

Listings that take over the same core job as Robtex.

  • ViewDNS.info

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

    FreemiumProprietaryWeb

    ViewDNS.info offers more than 20 DNS, IP and domain tools with IP history and reverse WHOIS, plus a paid API.

  • Who.is

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

    FreemiumProprietaryWeb

    Who.is combines WHOIS, RDAP, DNS and IP ownership lookups with optional paid monitoring for DNS changes and certificate expiry.

  • DomainTools Whois Lookup

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

    FreemiumProprietaryWeb

    DomainTools Whois Lookup focuses on domain ownership and IP history, with historical and reverse lookups aimed at paying users.

  • RIPEstat

    A web service for looking up routing, registration and geolocation data on IP addresses and ASNs.

    FreeProprietaryWeb

    RIPEstat concentrates on routing, registration and geolocation data for IPs and ASNs, with BGPlay visualisations and a non-commercial data API.

  • Hurricane Electric BGP Toolkit

    A web lookup for ASNs, prefixes, peers and internet routing data run by Hurricane Electric.

    FreeProprietaryWeb

    Hurricane Electric BGP Toolkit covers ASNs, prefixes and peering with a looking glass, but does not provide domain reputation lookups.

Also worth comparing

These listings name Robtex as their own alternative, so the relationship runs both ways.

  • DNSDumpster

    A web tool that discovers DNS records and hosts related to a domain for security research.

    FreeProprietaryWeb

    Robtex is a free web lookup covering domains, IPs, AS numbers and reputation data, rather than a focused map of a domain's hosts.

Similar software

Related functionality, not a direct replacement.

  • Cisco Talos Reputation Center

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

    FreeProprietaryWeb

  • Whois.com Lookup

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

    FreeProprietaryWeb

  • Shodan

    A search engine that indexes internet-connected devices and the services they expose.

    FreemiumProprietaryWebBrowser extension

  • Censys

    An internet intelligence platform for searching hosts, services and TLS certificates across the internet.

    FreemiumProprietaryWeb

  • bgp.tools

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

    FreemiumProprietaryWeb