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	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	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	Sonic	Stackpath	TransIP
VegaDNS	Versio.[nl/eu/uk]	VinylDNS	Vscale
Vultr	WEDOS	Yandex	Zone.ee
Zonomi