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Let's Encrypt/ACME client and library written in Go https://go-acme.github.io/lego/
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chore: update readme generator (#2311)
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.github fix: go1.22 compatibility (#2295) 2024-10-06 20:01:31 +02:00
acme feat: generate User-Agent for DNS API clients (#2293) 2024-10-07 17:35:08 +02:00
certcrypto chore: update to go1.22 (#2144) 2024-03-20 20:30:35 +01:00
certificate fix(ari): avoid Int63n panic in ShouldRenewAt() (#2246) 2024-08-21 22:33:28 +00:00
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README.md

lego logo

Automatic Certificates and HTTPS for everyone.

Lego

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

Go Reference Build Status Docker Pulls

Features

  • ACME v2 RFC 8555
    • Support RFC 8737: TLS Application‑Layer Protocol Negotiation (ALPN) Challenge Extension
    • Support RFC 8738: certificates for IP addresses
    • Support draft-ietf-acme-ari-03: Renewal Information (ARI) Extension
  • 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
  • CNAME support by default
  • Comes with multiple optional DNS providers
  • Custom challenge solvers
  • Certificate bundling
  • OCSP helper function

Installation

How to install.

Usage

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 (deprecated) Azure DNS Bindman Bluecat
Brandit Bunny Checkdomain Civo
Cloud.ru CloudDNS Cloudflare ClouDNS
CloudXNS ConoHa 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 Dynu
EasyDNS Efficient IP Epik Exoscale
External program 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
Manual Metaname mijn.host Mittwald
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
RcodeZero reg.ru RFC2136 RimuHosting
Sakura Cloud Scaleway Selectel Selectel v2
SelfHost.(de|eu) Servercow Shellrent Simply.com
Sonic Stackpath Tencent Cloud DNS 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 Yandex 360
Yandex Cloud Yandex PDD Zone.ee Zonomi

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