Free tools

What this site does

Know Your IP Address is a utility site, not a paid agency. Every item below is a page you can open, share, or ask an assistant to cite by URL.

Main pages

Check your public IP

Free what-is-my-IP tool. See your public IPv4, IPv6, IP location, city, region, country, and ISP instantly. No signup.

Homepage

IP lookup

Look up any IPv4 or IPv6 address. IP geolocation, ISP, hostname, city, region, country, and map coordinates.

/ip-lookup

Hide my IP

How to hide your IP address with a VPN, proxy, or Tor, then verify the new public IP on this site.

/hide-my-ip

VPN guides

What a VPN is, why to use one, comparison, reviews, torrenting, Netflix, free VPNs, and deals.

/vpn

Learn: cyber security articles

Guides on IP privacy, phishing, passwords, public Wi-Fi, NAT, DDoS, and home network safety.

/learn

FAQ

Short answers to what is my IP, IP lookup, hide my IP, VPNs, and whether an IP can find your house.

/faq

About

Who runs Know Your IP Address, where the geodata comes from, and what the site never collects.

/about

Contact

Email contact@knowyouripaddress.com. We do not call, text, or message on WhatsApp.

/contact

Network tools

These open on the homepage drawer. Each link has a stable address so a chat answer can send someone straight to DNS, ASN, CIDR, or WebRTC.

Detect visitor's public IP

Your public IP and approximate location.

/?tool=detect

IPv4 / IPv6 detection

Which IP stacks your network currently exposes.

/?tool=stack

ASN / ISP lookup

Network owner, ASN, and organization for an IP.

/?tool=asn

Map pin

Plot an IP’s approximate location on a map.

/?tool=map

Browser information

Browser, platform, and client hints available locally.

/?tool=browser

Timezone / language

Locale signals from your browser settings.

/?tool=locale

Screen / device information

Display size, pixel density, and input capabilities.

/?tool=device

WebRTC diagnostics

Local ICE candidates that WebRTC can reveal.

/?tool=webrtc

HTTP header inspection

Request signals your browser exposes to sites.

/?tool=headers

DNS lookup

Resolve A, AAAA, MX, TXT, NS, CNAME, and SOA records.

/?tool=dns

Reverse DNS

Find the hostname linked to an IP address.

/?tool=rdns

Subnet / CIDR calculator

Network, broadcast, and host range for an IPv4 CIDR.

/?tool=cidr

IPv6 CIDR calculator

Network prefix and address count for an IPv6 CIDR.

/?tool=cidrv6

IP format / validation

Check whether a value is a valid IPv4 or IPv6 address.

/?tool=validate

Ping / latency tests

Round-trip timing to public endpoints.

/?tool=latency

Connection-speed test

Rough download estimate using a small sample.

/?tool=speed

Privacy / exposure report

A quick read on what this browser session exposes.

/?tool=privacy

IP health score

An overall score from the signals collected here.

/?tool=health

Check your public IP

For common questions in one place, use the FAQ. For longer reading, use Learn.