ACME v2 RFC 8555
- Support RFC 8737: TLS Application‑Layer Protocol Negotiation (ALPN) Challenge Extension
- Support RFC 8738: certificates for IP addresses
- Support RFC 9773: Renewal Information (ARI) Extension
- Support draft-aaron-acme-profiles-00: Profiles Extension
Comes with about 150 DNS providers
Register with CA
Obtain certificates, both from scratch or with an existing CSR
Renew certificates
Revoke certificates
Robust implementation of ACME challenges:
- HTTP (http-01)
- DNS (dns-01)
- TLS (tls-alpn-01)
SAN certificate support
CNAME support by default
Custom challenge solvers
Certificate bundling
OCSP helper function

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.

Active24	Akamai EdgeDNS	Alibaba Cloud DNS	all-inkl
Amazon Lightsail	Amazon Route 53	ArvanCloud	Aurora DNS
Autodns	Axelname	Azion	Azure (deprecated)
Azure DNS	Baidu Cloud	Binary Lane	Bindman
Bluecat	BookMyName	Brandit (deprecated)	Bunny
Checkdomain	Civo	Cloud.ru	CloudDNS
Cloudflare	ClouDNS	CloudXNS (Deprecated)	ConoHa v2
ConoHa v3	Constellix	Core-Networks	CPanel/WHM
Derak Cloud	deSEC.io	Designate DNSaaS for Openstack	Digital Ocean
DirectAdmin	DNS Made Easy	dnsHome.de	DNSimple
DNSPod (deprecated)	Domain Offensive (do.de)	Domeneshop	DreamHost
Duck DNS	Dyn	DynDnsFree.de	Dynu
EasyDNS	Efficient IP	Epik	Exoscale
External program	F5 XC	freemyip.com	G-Core
Gandi	Gandi Live DNS (v5)	Glesys	Go Daddy
Google Cloud	Google Domains	Hetzner	Hosting.de
Hosttech	HTTP request	http.net	Huawei Cloud
Hurricane Electric DNS	HyperOne	IBM Cloud (SoftLayer)	IIJ DNS Platform Service
Infoblox	Infomaniak	Internet Initiative Japan	Internet.bs
INWX	Ionos	IPv64	iwantmyname
Joker	Joohoi's ACME-DNS	Liara	Lima-City
Linode (v4)	Liquid Web	Loopia	LuaDNS
Mail-in-a-Box	ManageEngine CloudDNS	Manual	Metaname
Metaregistrar	mijn.host	Mittwald	myaddr.{tools,dev,io}
MyDNS.jp	MythicBeasts	Name.com	Namecheap
Namesilo	NearlyFreeSpeech.NET	Netcup	Netlify
Nicmanager	NIFCloud	Njalla	Nodion
NS1	Open Telekom Cloud	Oracle Cloud	OVH
plesk.com	Porkbun	PowerDNS	Rackspace
Rain Yun/雨云	RcodeZero	reg.ru	Regfish
RFC2136	RimuHosting	RU CENTER	Sakura Cloud
Scaleway	Selectel	Selectel v2	SelfHost.(de\|eu)
Servercow	Shellrent	Simply.com	Sonic
Spaceship	Stackpath	Technitium	Tencent Cloud DNS
Tencent EdgeOne	Timeweb Cloud	TransIP	UKFast SafeDNS
Ultradns	Variomedia	VegaDNS	Vercel
Versio.[nl\|eu\|uk]	VinylDNS	VK Cloud	Volcano Engine/火山引擎
Vscale	Vultr	Webnames	Websupport
WEDOS	West.cn/西部数码	Yandex 360	Yandex Cloud
Yandex PDD	Zone.ee	ZoneEdit	Zonomi

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