Mnemonic
Mnemonic's public PassiveDNS service providing historical and current DNS records collected from global sensor networks. Unauthenticated queries…
Platforms: Web · Last verified September 7, 2026
Mnemonic’s public PassiveDNS service providing historical and current DNS records collected from global sensor networks. Unauthenticated queries available with rate limiting.
Only use this tool against systems you own or are explicitly authorized to test — see the disclaimer.
Getting started
Best for: Passive DNS lookups, historical domain resolutions, DNS reconnaissance. See the official site linked above for details.