# google/nomulus

Top-level domain name registry service on Google Cloud Platform

Repository: https://github.com/google/nomulus
Canonical: https://ross.abutalabs.com/products/nomulus
Homepage: https://registry.google
Language: Java
License: Apache-2.0
License Family: permissive
Last push: 2026-08-26T19:30:31+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 87, longevity 100
- inputs: {"age_days": 3838, "days_push": 7, "days_rel": 7, "gap_med": 0.0, "n_releases_24m": 921}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1806, forks 301 (observed 2026-08-28T04:05:39.102037+00:00)

## What it is
Nomulus is an open-source, scalable, cloud-based top-level domain (TLD) registry service written in Java and running on Google Kubernetes Engine. It is the authoritative system for tracking domain ownership and handling registrations, renewals, availability checks, and RDAP requests, and powers Google Registry's TLDs like .app and .dev.

## Use cases
- run a top-level domain registry
- operate multiple TLDs in one shared registry system
- implement EPP domain provisioning
- serve RDAP domain registration data
- track domain name ownership and renewals
- launch a new gTLD with ICANN compliance

## When to choose
- you are an ICANN-accredited registry operator running one or more TLDs
- you need a proven, horizontally scalable registry on Google Cloud
- you want an open-source alternative to proprietary registry software
- you need EPP and RDAP support out of the box

## When to avoid
- you just want to register or manage a few domains as a customer
- you need a simple DNS server rather than a full registry system
- you are not prepared to operate infrastructure on Google Cloud Platform
- you need a lightweight registrar-side tool rather than registry software

## Facets
- artifact type: service
- maturity: active
- function: http-server, api-framework, database, security, deployment, developer-tools
- domain: web-development, infrastructure-as-code, cloud-computing, apis, self-hosted, networking
- platform: jvm, cloud
- tags: domain-registry, tld, epp, rdap, dns, icann, registrar, google-cloud, kubernetes, docker, linux

## Member repositories
- google/nomulus (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:39.102037+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 2026-08-30T03:21:29.663618+00:00, confidence not recorded.
  - readme: https://github.com/google/nomulus (fetched 2026-08-28T04:05:39.102037+00:00, sha f9c427d77826)
  - homepage: https://registry.google (fetched 2026-08-29T11:00:29.596833+00:00, sha bcd257e0627b)
  - site_page: https://www.registry.google/faqs (fetched 2026-08-29T11:00:29.605893+00:00, sha 36dbf1b3cd65)
- Data as of 2026-08-30T08:39:29.467469+00:00.