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.github chore: update documentation theme (#2632) 2025-08-28 23:44:26 +02:00
acme Prepare release v4.26.0 2025-09-13 13:33:15 +02:00
certcrypto tests: use better test domains (#2603) 2025-07-28 09:26:40 +02:00
certificate tests: change the signature of the method BuildHTTPS (#2611) 2025-08-04 10:21:14 +00:00
challenge tests: new DNS router/server/mock (#2613) 2025-08-08 18:28:50 +02:00
cmd Prepare release v4.26.0 2025-09-13 13:33:15 +02:00
docs Add DNS provider for KeyHelp (#2642) 2025-09-13 13:07:40 +02:00
e2e tests: use better test domains (#2603) 2025-07-28 09:26:40 +02:00
internal chore: update to go1.24 (#2566) 2025-07-08 17:23:52 +02:00
lego tests: change the signature of the method BuildHTTPS (#2611) 2025-08-04 10:21:14 +00:00
log chore: update to go1.24 (#2566) 2025-07-08 17:23:52 +02:00
platform tests: new DNS router/server/mock (#2613) 2025-08-08 18:28:50 +02:00
providers Prepare release v4.26.0 2025-09-13 13:33:15 +02:00
registration tests: change the signature of the method BuildHTTPS (#2611) 2025-08-04 10:21:14 +00:00
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.gitignore Refactor the core of the lib (#700) 2018-12-06 22:50:17 +01:00
.golangci.yml tests: new DNS router/server/mock (#2613) 2025-08-08 18:28:50 +02:00
.goreleaser.yml chore: update goreleaser configuration 2025-02-17 20:47:35 +01:00
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CHANGELOG.md Prepare release v4.26.0 2025-09-13 13:33:15 +02:00
CONTRIBUTING.md chore: fix grammar and typo (#1978) 2023-07-29 12:59:24 +02:00
Dockerfile chore: use buildx for cross-platform image builds 2023-02-26 14:27:16 +01:00
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go.sum chore: update dependencies (#2644) 2025-09-13 13:06:59 +02:00
LICENSE chore: update license date 2024-10-10 22:11:07 +02:00
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README.md Add DNS provider for KeyHelp (#2642) 2025-09-13 13:07:40 +02:00

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
  • 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

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 KeyHelp 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.