dns-whois

# dns-whois Use local DNS and WHOIS tools for authorized domain, host, nameserver, mail, address, ASN, registration, and ownership triage. ## Help first Before constructing commands, use installed help or version output as the source of truth: ```sh dig -h whois --help ``` ## Usage rules - Work only on in-scope domains, hosts, networks, or user-provided indicators. - Record the exact queried identifier and query time when results support a finding. - Prefer targeted record lookups over broad enumeration. - Use `dnsx` instead when a discovered hostname list needs batch validation or machine-readable DNS output. - Treat WHOIS, DNS, and registry data as time-sensitive intelligence that may be stale, proxied, incomplete, or privacy-protected. - Cross-check important ownership, delegation, and resolution claims with independent DNS records or supporting evidence. - Save large query batches and raw outputs to files rather than streaming them into the conversation. ## Common workflows Targeted DNS record triage: ```sh dig example.com A dig example.com AAAA dig example.com MX dig example.com NS dig example.com TXT ``` Compact output for pipelines: ```sh dig +short example.com A ``` Resolver-specific check: ```sh dig @1.1.1.1 example.com A ``` WHOIS and basic resolver lookup: ```sh whois example.com nslookup example.com ``` ## Output Report the queried identifier, command used, relevant records or ownership signals, confidence, time sensitivity, output paths, and any unresolved or conflicting evidence.