A few years ago I built a simple, privacy‑respecting page that shows your public IP address along with a basic reverse DNS and a whois lookup. It did that without setting any cookies, without third‑party trackers, without ads, and – most importantly – without ever storing your IP address on the server. Then, for a long time, it sat behind a “Not authorized” error and stopped working.
Today I’m happy to announce that the page is back online – and it has been significantly improved:
→ Open the IP & Privacy Check Tool
The tool is meant for anyone who wants a quick, trustworthy way to see which IP address they are exposing to the internet, along with useful privacy tests. It’s still the same zero‑log, zero‑tracker philosophy, but now the whois section is much smarter.
What the page does
- Shows your current public IP address (IPv4 or IPv6).
- Performs a reverse DNS lookup.
- Displays your browser’s user agent (and warns if JavaScript is enabled).
- Links to external, reputable tests for: third‑party cookies, DNS leaks, WebRTC leaks, browser fingerprinting, and canvas fingerprinting.
- Provides a whois information block that now shows only the actual assignee of the IP, without the confusing multi‑registry results it used to display.
What changed (and why it matters)
The original code queried up to five different whois servers (AfriNIC, LACNIC, APNIC, ARIN, RIPE). Most of the output was generic delegation data like “this range belongs to APNIC”. That made it hard to spot who really owns the IP.
Now the script:
- Determines the correct Regional Internet Registry (RIR) for the IP via IANA.
- Contacts only that RIR, then automatically follows any referral to the final whois server that holds the assignment details.
- Cleans up comments and empty lines, presenting only the relevant registration information (netname, description, country, abuse contact, etc.).
The rest of the page hasn’t changed: no logs, no cookies, no analytics, no external requests except the third‑party tests you explicitly click on. The code is still simple PHP that you can read and host yourself if you want.
If you find it useful, sharing or linking to it helps others discover a transparent alternative to commercial “check my IP” services that often profile visitors.
(May 6, 2026)