Let's Encrypt/ACME client written in Go
Lego can be use as a Let's Encrypt/ACME CLI and can solve multiple ACME
challenge types out of the box or use custom challenge solvers.

Features:
- ACME v2 RFC 8555
- Register with CA
- Obtain certificates, both from scratch or with an existing CSR
- Renew certificates
- Revoke certificates
- Robust implementation of all ACME challenges
- HTTP (http-01)
- DNS (dns-01)
- TLS (tls-alpn-01)
- SAN certificate support
- Comes with multiple optional DNS providers
- Custom challenge solvers
- Certificate bundling
- OCSP helper function

Maintainer: Horia Racoviceanu <horia@racoviceanu.com>

WWW: https://go-acme.github.io/lego/
