lego/README.md

Let's Encrypt client and ACME library written in Go.

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

lego introduced support for ACME v2 in v1.0.0. If you still need to utilize ACME v1, you can do so by using the v0.5.0 version.

Installation

How to install.

Usage

• as a CLI
• as a library

Documentation

Documentation is hosted live at https://go-acme.github.io/lego/.

DNS providers

Detailed documentation is available here.

Akamai EdgeDNS	Alibaba Cloud DNS	all-inkl	Amazon Lightsail
Amazon Route 53	ArvanCloud	Aurora DNS	Autodns
Azure	Bindman	Bluecat	Checkdomain
CloudDNS	Cloudflare	ClouDNS	CloudXNS
ConoHa	Constellix	deSEC.io	Designate DNSaaS for Openstack
Digital Ocean	DNS Made Easy	DNSimple	DNSPod
Domain Offensive (do.de)	Domeneshop	DreamHost	Duck DNS
Dyn	Dynu	EasyDNS	Exoscale
External program	Gandi Live DNS (v5)	Gandi	Glesys
Go Daddy	Google Cloud	Hetzner	Hosting.de
HTTP request	Hurricane Electric DNS	HyperOne	Infoblox
Infomaniak	Internet Initiative Japan	Internet.bs	INWX
Ionos	Joker	Joohoi's ACME-DNS	Linode (v4)
Liquid Web	Loopia	LuaDNS	Manual
MyDNS.jp	MythicBeasts	Name.com	Namecheap
Namesilo	Netcup	Netlify	NIFCloud
Njalla	NS1	Open Telekom Cloud	Oracle Cloud
OVH	Porkbun	PowerDNS	Rackspace
reg.ru	RFC2136	RimuHosting	Sakura Cloud
Scaleway	Selectel	Servercow	Simply.com
Sonic	Stackpath	TransIP	VegaDNS
Versio.[nl/eu/uk]	VinylDNS	Vscale	Vultr
WEDOS	Yandex	Zone.ee	Zonomi

If your DNS provider is not supported, please open an issue.