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Educational and ethical use only. Only test systems you own or are explicitly authorized to test. Full disclaimer.

DNSstuff

Suite of free DNS and network tools providing lookups, DNS checks, and WHOIS information for domain reconnaissance.

domain-name
Official docs ↗

Platforms: Web · Last verified September 7, 2026

Suite of free DNS and network tools providing lookups, DNS checks, and WHOIS information for domain reconnaissance.

Only use this tool against systems you own or are explicitly authorized to test — see the disclaimer.

Getting started

Best for: Quick DNS and WHOIS lookups, network diagnostics. See the official site linked above for details.