Toolbox
Free IP & Network Tools
Everything you need to investigate an IP address, protect your privacy and diagnose your connection — all free and in your browser.
IP Lookup
Find the location, ISP, ASN and network details of any IP.
Open toolBlacklist Check
See whether an IP is listed on major DNS blacklists (DNSBLs).
Open toolBeta
Proxy Check
Check whether an IP belongs to a proxy, VPN or hosting provider.
Open toolVPN Leak Check
Check whether your browser leaks your real IP through WebRTC.
Open toolTrace Email
Analyse email headers to trace the originating IP and route.
Open toolPhone Lookup
Validate a phone number and reveal its country, format and type.
Open toolSpeed Test
Measure your connection's download, upload and latency.
Open toolReverse DNS Lookup
Find the hostname (PTR record) behind an IP address.
Open toolHostname Lookup
Resolve a domain or hostname to its IPv4 and IPv6 addresses.
Open tool