IP and network tools

DNS lookup

See a domain's A, AAAA, MX, NS, TXT and CNAME records at once.

IP owner lookup (WHOIS)

Shows the registry, owning organization, range and abuse contact of an IP block.

Bulk IP lookup

Paste many IPs and see their country and network in one table.

ASN lookup

Shows a network's IP ranges, country, and how many VPN servers and Tor exits it has.

IP subnet calculator

Works out the range and host count of a CIDR block (for example 192.168.0.0/24).

IP converter

Turns an IPv4 address into decimal, hex or binary, and back.

WebRTC leak test

Checks whether your browser reveals your real IP even behind a VPN.

My browser info

Shows what a website can see: browser, OS, screen, language and time zone.