dnsx

name	dnsx
description	Use ProjectDiscovery dnsx for authorized batch DNS resolution, record lookup, and validation of discovered hostnames.

dnsx

Use ProjectDiscovery dnsx to validate discovered hostnames and collect DNS records for in-scope assets.

Help First

Before constructing commands, run the installed help and use it as the source of truth:

dnsx -h

Usage Rules

• Work only on in-scope domains, hostnames, or resolver tests.
• Prefer file or stdin input for host lists and keep batches bounded.
• Use JSON output when results will be parsed or attached as evidence.
• Treat DNS answers as time-sensitive and resolver-dependent.
• Save large outputs to files rather than streaming them into the conversation.
• Use dnsx for batch validation and DNS records from discovered host lists; use dig, nslookup, or whois for targeted manual triage.

Common Workflows

Resolve a discovered host list:

dnsx -l names.txt -silent -o resolved.txt

Write JSONL evidence when later parsing matters:

dnsx -l names.txt -silent -json -o dnsx.jsonl

Use a resolver file only when the task requires controlled resolver behavior:

dnsx -l names.txt -r resolvers.txt -silent -o resolved.txt

Output

Report input scope, command used, resolver or record mode when relevant, output path, resolved count, and notable records.