All tools
RDAP / WHOIS + Reverse DNS
Who owns a domain or IP: registrar, dates, abuse contact, reverse DNS.
Why this exists
'Who owns this IP hitting the firewall?' and 'when does this domain expire?' are constant questions. RDAP is the modern, structured replacement for WHOIS and needs no account.
How to use
- Enter a domain or an IP address.
- Domains return registrar, status, created/expiry, and nameservers.
- IPs return the owning org, country, network range, abuse contact, and reverse-DNS (PTR).
Worked example
Try cloudflare.com for a domain (registrar, expiry, nameservers) or 1.1.1.1 for an IP (owning org, range, abuse contact, reverse-DNS).