# hakluke/hakoriginfinder

Tool for discovering the origin host behind a reverse proxy. Useful for bypassing cloud WAFs!

Repository: https://github.com/hakluke/hakoriginfinder
Canonical: https://ross.abutalabs.com/products/hakoriginfinder
Language: Go
License Family: other
Last push: 2026-08-05T04:05:44+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 96, release rhythm 35, longevity 100
- inputs: {"age_days": 1584, "days_push": 28, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1101, forks 138 (observed 2026-08-28T04:03:35.709986+00:00)

## What it is
hakoriginfinder is a Go CLI tool that discovers the origin host behind a reverse proxy or WAF. It sends requests with the original Host header to a list of IP addresses and compares responses to the real site using Levenshtein similarity to identify matches.

## Use cases
- find the origin server IP behind cloudflare
- bypass a cloud WAF to reach the real host
- identify which IPs in a range host the same website
- discover origin hosts during a penetration test
- check if a domain's WAF can be bypassed via direct IP access

## When to choose
- you have a list of candidate IPs (e.g. from DNS history or a CIDR range) and want to find which one serves the target site
- you are doing authorized penetration testing or bug bounty recon on WAF-protected targets

## When to avoid
- you lack authorization to test the target
- you need a general-purpose web scanner rather than a single-purpose origin finder

## Facets
- artifact type: cli-tool
- maturity: active
- function: http-client, security, networking
- domain: security, penetration-testing, osint, networking
- platform: windows, cli, go
- tags: origin-discovery, waf-bypass, reverse-proxy, host-header, levenshtein, bug-bounty, recon, linux, macos

## Member repositories
- hakluke/hakoriginfinder (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:35.709986+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 2026-08-30T06:45:42.802545+00:00, confidence not recorded.
  - readme: https://github.com/hakluke/hakoriginfinder (fetched 2026-08-28T04:03:35.709986+00:00, sha a1b36969942f)
- Data as of 2026-08-30T08:39:29.467469+00:00.