# certbot/certbot

Certbot is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server.  It can also act as a client for any other CA that uses the ACME protocol.

Repository: https://github.com/certbot/certbot
Canonical: https://ross.abutalabs.com/products/certbot
Language: Python
License: NOASSERTION
License Family: other
Topics: acme, acme-client, certbot, certificate, letsencrypt, python
Last push: 2026-08-25T17:52:15+00:00

## Health v2 (maintenance only)
Score: 97/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 94, longevity 100
- inputs: {"age_days": 4312, "days_push": 8, "days_rel": 43, "gap_med": 28, "n_releases_24m": 20}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 33216, forks 3509 (observed 2026-08-28T04:11:58.187192+00:00)

## What it is
Certbot is EFF's tool for obtaining TLS certificates from Let's Encrypt and optionally auto-configuring HTTPS on your server. It also works as an ACME client for any other certificate authority that supports the ACME protocol.

## Use cases
- get free TLS certificates from Let's Encrypt
- automatically enable HTTPS on my web server
- renew SSL certificates automatically
- ACME client for my certificate authority
- set up HTTPS with nginx or apache
- manage certificate renewal cron jobs

## When to choose
- you want free, automated Let's Encrypt certificates
- you run a standard web server like nginx or Apache and want automatic HTTPS setup
- you need a mature, widely supported ACME client

## When to avoid
- you need certificates from a CA that doesn't support ACME
- you prefer declarative certificate management via infrastructure-as-code tools like Kubernetes cert-manager
- you need wildcard certificates with DNS providers lacking a Certbot plugin

## Facets
- artifact type: cli-tool
- maturity: active
- function: security, cli, deployment
- domain: security, web-development, self-hosted
- platform: python, cli, self-hosted
- tags: acme, letsencrypt, tls-certificates, https, certificate-management, devops, linux, web-server

## Member repositories
- certbot/certbot (main) score 97

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:58.187192+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 2026-08-29T16:28:29.318489+00:00, confidence not recorded.
  - readme: https://github.com/certbot/certbot (fetched 2026-08-28T04:11:58.187192+00:00, sha c1d1219adbf3)
  - registry_pypi: https://pypi.org/pypi/certbot/json (fetched 2026-08-29T07:48:43.023405+00:00, sha 2858bc8ac402)
- Data as of 2026-08-30T08:39:29.467469+00:00.