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Programming language: Go
License: MIT License
Tags: Security    
Latest version: v4.5.3

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README

[lego](./docs/static/images/logo.png)

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

GoDoc Build Status Docker Pulls

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

Documentation

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

DNS providers

Detailed documentation is available here.

<!-- START DNS PROVIDERS LIST -->

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 Epik
Exoscale External program freemyip.com G-Core Labs
Gandi Live DNS (v5) Gandi Glesys Go Daddy
Google Cloud Hetzner Hosting.de Hosttech
HTTP request Hurricane Electric DNS HyperOne IBM Cloud (SoftLayer)
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
Nicmanager 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

<!-- END DNS PROVIDERS LIST -->

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