# infosec-au/altdns

Generates permutations, alterations and mutations of subdomains and then resolves them

Repository: https://github.com/infosec-au/altdns
Canonical: https://ross.abutalabs.com/products/altdns
Language: Python
License: Apache-2.0
License Family: permissive
Last push: 2025-01-09T04:24:27+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3793, "days_push": 601, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2503, forks 447 (observed 2026-08-28T04:06:57.070015+00:00)

## What it is
Altdns is a Python CLI tool for DNS reconnaissance that generates permutations, alterations, and mutations of known subdomains using a wordlist. It can optionally resolve the generated candidate subdomains multi-threaded to find valid DNS records.

## Use cases
- discover subdomains that follow naming patterns like dev or staging
- generate permuted subdomain lists for DNS bruteforcing tools
- resolve mutated subdomain candidates to find live hosts
- expand a small known subdomain list into a larger attack surface
- enumerate hidden environments in a domain during recon

## When to choose
- you already have a seed list of subdomains and want pattern-based expansion
- you want a fast, scriptable CLI that plugs into existing recon pipelines
- you need multi-threaded DNS resolution of generated candidates

## When to avoid
- you have no initial subdomain data, as it works best with 200+ known subdomains
- you need a full-featured modern subdomain enumeration suite rather than a single-purpose permutation tool
- you require active maintenance or Python 3-first support guarantees

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: security, networking, cli
- domain: security, penetration-testing, networking, developer-tools
- platform: cli, python, windows
- tags: dns-recon, subdomain-enumeration, osint, dns-permutation, recon, linux, macos

## Member repositories
- infosec-au/altdns (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:57.070015+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:26:46.460793+00:00, confidence not recorded.
  - readme: https://github.com/infosec-au/altdns (fetched 2026-08-28T04:06:57.070015+00:00, sha 7ffd79d4fa13)
- Data as of 2026-08-30T08:39:29.467469+00:00.