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Use dnsx -h to display all of the help options.

Help options

Notes on usage

  • By default, dnsx checks for A record.
  • By default dnsx uses Google, Cloudflare, Quad9 resolver.
  • A custom resolver list can be loaded using the r flag.
  • Domain name (wd) input is mandatory for wildcard elimination.
  • The DNS record flag cannot be used when using wildcard filtering.
  • DNS resolution (l) and DNS brute-forcing (w) can’t be used together.
  • VPN operators tend to filter high DNS/UDP traffic, therefore the tool might experience packets loss (eg. Mullvad VPN)
dnsx is made with 🖤 by the projectdiscovery team.