# favonia/cloudflare-ddns

🌟 A small, feature-rich, and robust Cloudflare DDNS updater

Repository: https://github.com/favonia/cloudflare-ddns
Canonical: https://ross.abutalabs.com/products/favonia-cloudflare-ddns
Language: Go
License: Apache-2.0
License Family: permissive
Topics: cloudflare, dns, ddns, ddns-client, docker, docker-compose, golang, ipv6, docker-image, selfhosted, dynamic-dns, dns-over-https, healthchecks, go, ddns-updater, cloudflare-ddns
Last push: 2026-08-18T07:37:37+00:00

## Health v2 (maintenance only)
Score: 97/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 95, longevity 100
- inputs: {"age_days": 1916, "days_push": 15, "days_rel": 36, "gap_med": 18, "n_releases_24m": 8}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2870, forks 116 (observed 2026-08-28T04:07:26.978012+00:00)

## What it is
A small, feature-rich, and robust Cloudflare DDNS updater written in Go, distributed as a lightweight Docker image. It detects the machine's public IPv4/IPv6 addresses and updates Cloudflare DNS records via the Cloudflare API.

## Use cases
- keep my home server's domain pointing at my dynamic IP
- update Cloudflare DNS records automatically when my IP changes
- dynamic DNS for IPv6 with Cloudflare
- self-hosted services behind Cloudflare with changing public IP
- monitor DDNS updater failures with Healthchecks or Uptime Kuma
- maintain Cloudflare WAF lists of my current IP addresses

## When to choose
- you use Cloudflare for DNS and need automatic updates of A/AAAA records
- you want a tiny, reliable Docker-based DDNS client with IPv6, wildcard, and internationalized domain support
- you need failure notifications via Healthchecks, Uptime Kuma, or shoutrrr-supported services

## When to avoid
- your DNS is hosted with a provider other than Cloudflare
- you need a DDNS client with a GUI or support for many DNS providers
- you cannot run Docker or a Go binary on your host

## Facets
- artifact type: service
- maturity: active
- function: networking, monitoring, alerting, cli
- domain: networking, self-hosted, cloud-computing, developer-tools
- platform: go, self-hosted
- tags: ddns, cloudflare, dynamic-dns, ipv6, dns-updater, home-server, docker, linux

## Member repositories
- favonia/cloudflare-ddns (main) score 97

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:26.978012+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 2026-08-30T07:35:53.080546+00:00, confidence not recorded.
  - readme: https://github.com/favonia/cloudflare-ddns (fetched 2026-08-28T04:07:26.978012+00:00, sha 9c390a23166c)
- Data as of 2026-08-30T08:39:29.467469+00:00.