DNS resolution and enumeration

Which of these names resolve, and to what?

A raw subdomain list is noisy. DNS tools resolve it at scale, filter wildcard records, and show the IP space and providers behind each name.

Listed alphabetically. The order is not a ranking.

• dnsxActive

  Fast DNS toolkit that resolves, queries record types, brute forces names and filters wildcard DNS for lists of hosts.

  2.9k stars · last push November 9, 2026 · v1.3.1 · MIT

• FierceActiveLow activity

  Python DNS reconnaissance tool that tries a zone transfer, guesses subdomains, and scans nearby IPs to find non-contiguous IP space.

  1.8k stars · last push August 28, 2024 · GPL-3.0

• MassDNSActive

  High-performance DNS stub resolver in C for resolving millions of names, often used for subdomain brute forcing.

  3.7k stars · last push September 27, 2026 · v1.1.0 · GPL-3.0

• shuffleDNSActive

  Go wrapper around massdns that brute forces or resolves subdomains at high volume and filters wildcard DNS.

  1.7k stars · last push November 9, 2026 · v1.2.1 · GPL-3.0