Network tools
Professional-grade tools that run on real data. Every result links to the next useful step.
IP addresses
- What is my IPYour public IPv4 and IPv6 address with network details.
- IP LookupASN, ISP, route, reverse DNS and location for any address.
- IPv4 LookupDetails and formats for any IPv4 address.
- IPv6 LookupDetails, expansion and compression for any IPv6 address.
- IP LocationApproximate geolocation with sources and accuracy.
- IPv6 TestDoes your connection work over IPv4, IPv6 or both?
- IP Address ValidatorCheck whether an address is valid, and what kind of address it is.
DNS
- DNS LookupA, AAAA, MX, TXT, NS, SOA, CAA and more with TTLs.
- Reverse DNSPTR records with forward confirmation.
- DNS PropagationCompare answers from several public resolvers.
- WHOIS / RDAPRegistration data for domains, IP networks and ASNs.
- TLS Certificate CheckThe certificate a server presents, its chain and expiry.
- HTTP HeadersYour request headers, and the response headers of any public URL.