Domain & IP investigation summary

Look up any domain or IP and see WHOIS, DNS, mail authentication, threat indicators, and blacklist status on one page. Plain English. No signup. Free.

Auto-detects whether you've entered a domain or an IPv4 address. WHOIS, DNS records, mail-auth, threat data, and 4 major blacklists are checked in parallel — typical lookup completes in 2–5 seconds.

Investigating
At-a-glance verdict