# brianshea2/addr.tools

possibly useful tools for the Internet

Repository: https://github.com/brianshea2/addr.tools
Canonical: https://ross.abutalabs.com/products/addrtools
Homepage: https://addr.tools
Language: Go
License: AGPL-3.0
License Family: copyleft
Topics: dns
Last push: 2026-08-18T00:41:26+00:00

## Health v2 (maintenance only)
Score: 68/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 35, longevity 60
- inputs: {"age_days": 849, "days_push": 16, "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 2432, forks 80 (observed 2026-08-28T04:06:51.144970+00:00)

## What it is
A collection of free DNS-based Internet utilities (dynamic DNS, public IP lookup, ACME dns-01 challenge helper, DNS resolver testing) plus addrd, the custom Go DNS server powering them. The repo contains both the hosted services and the self-hostable DNS server source code.

## Use cases
- get my public IP address from the command line
- dynamic DNS for my own domain without an account
- solve dns-01 ACME challenges for wildcard certificates
- check which DNS resolvers I'm using and whether DNSSEC validation works
- self-host a custom authoritative DNS server in Go
- look up identifying info for domains and IP addresses

## When to choose
- you need account-free dynamic DNS or a free subdomain for dynamic updates
- you want a helper zone for Let's Encrypt dns-01 challenges
- you want to debug or test DNS resolvers and DNSSEC behavior
- you want a lightweight custom DNS server written in Go to self-host

## When to avoid
- you need a full-featured DNS server like BIND, PowerDNS, or CoreDNS with zone transfers and recursion
- you need managed DNS hosting with a web control panel
- you need dynamic DNS with authentication and multi-user account management

## Facets
- artifact type: service
- maturity: active
- function: networking, http-server, security
- domain: networking, developer-tools, self-hosted, security
- platform: go, self-hosted
- tags: dns-server, dynamic-dns, acme-dns-01, dnssec, public-ip-lookup, dns-testing, linux, web-server

## Member repositories
- brianshea2/addr.tools (main) score 68

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:51.144970+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 2026-08-30T02:31:16.609732+00:00, confidence not recorded.
  - readme: https://github.com/brianshea2/addr.tools (fetched 2026-08-28T04:06:51.144970+00:00, sha 1efd22740a21)
  - homepage: https://addr.tools (fetched 2026-08-29T10:12:33.298493+00:00, sha 342802fef129)
- Data as of 2026-08-30T08:39:29.467469+00:00.