# FeeiCN/ESD

Enumeration sub domains(枚举子域名)

Repository: https://github.com/FeeiCN/ESD
Canonical: https://ross.abutalabs.com/products/esd
Homepage: https://yuque.com/esd
Language: Python
License: GPL-3.0
License Family: copyleft
Topics: subdomain-scanner, subdomain-brute, security-scanner, security-tools, brute-force
Archived: true
Last push: 2021-12-01T12:09:42+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3109, "days_push": 1736, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1068, forks 164 (observed 2026-08-28T04:03:27.442989+00:00)

## What it is
ESD is a Python-based subdomain enumeration tool that brute-forces and collects subdomains for a given domain. It uses AsyncIO/aioDNS for fast concurrent DNS queries and RSC (response similarity comparison) to handle wildcard DNS domains.

## Use cases
- enumerate subdomains of a domain
- brute-force subdomains with a large dictionary
- discover subdomains behind wildcard DNS
- collect subdomains from certificate transparency and DNS transfers
- run asset discovery during a security assessment

## When to choose
- you need fast async DNS-based subdomain brute-forcing in Python
- target domains use wildcard DNS resolution
- you want multiple collection channels (CT logs, DNSPod, page content, zone transfer) in one tool

## When to avoid
- you need a maintained tool with active development (last release 2021)
- you need passive-only enumeration without DNS brute-forcing
- you need a GUI or web interface

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: security, networking, cli
- domain: security, penetration-testing, networking
- platform: python, cli, windows
- tags: subdomain-enumeration, dns-bruteforce, reconnaissance, osint, asyncio, dns, command-line, linux, macos

## Member repositories
- FeeiCN/ESD (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:27.442989+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 2026-08-30T06:54:36.976107+00:00, confidence not recorded.
  - readme: https://github.com/FeeiCN/ESD (fetched 2026-08-28T04:03:27.442989+00:00, sha c63b7d764601)
  - homepage: https://yuque.com/esd (fetched 2026-08-29T12:57:01.764443+00:00, sha eaf76c1c14d3)
  - registry_pypi: https://pypi.org/pypi/esd/json (fetched 2026-08-29T12:57:01.773324+00:00, sha 7ca8991e55f6)
- Data as of 2026-08-30T08:39:29.467469+00:00.