About showmyipaddress.io
showmyipaddress.io is a free site for checking your IP address, looking up information about other IPs and hostnames, and understanding how the internet sees you. We also publish plain-English guides on networking, privacy, and online security.
Who writes this
The blog and guides on showmyipaddress.io are written by John. Articles are written and updated to stay accurate as tools, IP allocation, and networking practices change — if something's out of date or wrong, the contact page is the fastest way to flag it.
What we build
- A homepage that shows your public IPv4 or IPv6 address with the location, ISP, and device info that any website you visit could also see — except we tell you about it.
- A growing set of free network tools — IP lookup, hostname lookup, blacklist check, subnet calculator, WebRTC leak test, email header analyzer.
- A blog covering the basics of IP addresses, IPv4 vs IPv6, VPN vs Tor vs proxies, and how to keep your network private.
What we do (and don't) collect
To show you your IP, we have to receive it — that's how the internet works. We use it once to look up your geolocation and ISP, and we don't store it. We don't sell visitor data, and we never join lookup data to anything else. We do use privacy-focused analytics (Plausible) alongside Google Analytics and Google-served ads to keep the tools free — the full details, including exactly what's collected and how to opt out, are in our privacy policy.
Why we built it
Most "what is my IP" sites are cluttered with intrusive trackers, forced signups, or dark patterns designed to obscure what's actually being collected. We wanted a site that's fast, useful, and upfront about how it works and how it stays free. The tools work the same whether you're a developer debugging a connection or someone curious about the message your network sends to every site you visit.
Get in touch
Found a bug, have a feature request, or want to suggest an article? Reach us via the contact page.