Domain Owner Checker & WHOIS RDAP Lookup Tool

Run a real-time domain owner lookup and WHOIS domain search to check registrar contact information, nameservers, registration dates, registration history, and secure DNS signatures. This tool uses modern, secure RDAP (Registration Data Access Protocol) APIs to fetch live, structured registrar JSON records directly.

What is WHOIS and RDAP?

WHOIS is the traditional protocol used to query databases that store the registered users or assignees of an Internet resource, such as a domain name or an IP address block. RDAP is the next-generation protocol designed by ICANN to replace WHOIS. RDAP provides secure, standardized, structured JSON outputs, makes it easier to query registration data, and fully respects modern privacy regulations like GDPR by safely redacting personal contact information when WHOIS privacy is active.

How to use this tool:

1. Enter any domain name (e.g., example.com) in the lookup box.
2. Click "WHOIS Lookup" to run the query.
3. View structured details (registrar, nameservers, status flags), check contact records, and analyze the raw RDAP JSON response.

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