DNS & Lookup Tools
Whois / RDAP Lookup
Query registration (whois/RDAP) data for an IP address or domain.
📖 New to this? Read What Is an Autonomous System (AS) and BGP?.
❓ Frequently Asked Questions
What is the Whois / RDAP Lookup used for?
Look up registration data for an IP address or domain using RDAP.
Is the Whois / RDAP Lookup free and private?
Yes — it's free with no sign-up. The Whois / RDAP Lookup queries public network services (such as DNS or WHOIS) directly from your browser to fetch live results; IP Ducky never logs or stores what you look up.
Do I need to install anything to use the Whois / RDAP Lookup?
No. It works in any modern web browser on desktop, tablet, or phone — no downloads, no browser extensions, and no account required.