lego/README.md

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# ![lego](./docs/static/images/logo.png)
Let's Encrypt client and ACME library written in Go.
2015-06-13 02:45:04 +00:00
2020-09-02 01:20:01 +00:00
[![GoDoc](https://godoc.org/github.com/go-acme/lego?status.svg)](https://pkg.go.dev/mod/github.com/go-acme/lego/v4)
2019-03-11 19:00:39 +00:00
[![Build Status](https://travis-ci.com/go-acme/lego.svg?branch=master)](https://travis-ci.com/go-acme/lego)
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[![Docker Pulls](https://img.shields.io/docker/pulls/goacme/lego.svg)](https://hub.docker.com/r/goacme/lego/)
## Features
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- ACME v2 [RFC 8555](https://tools.ietf.org/html/rfc8555)
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- Register with CA
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- Obtain certificates, both from scratch or with an existing CSR
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- Renew certificates
- Revoke certificates
- Robust implementation of all ACME challenges
- HTTP (http-01)
- DNS (dns-01)
- TLS (tls-alpn-01)
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- SAN certificate support
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- Comes with multiple optional [DNS providers](https://go-acme.github.io/lego/dns)
- [Custom challenge solvers](https://go-acme.github.io/lego/usage/library/writing-a-challenge-solver/)
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- Certificate bundling
- OCSP helper function
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lego introduced support for ACME v2 in [v1.0.0](https://github.com/go-acme/lego/releases/tag/v1.0.0). If you still need to utilize ACME v1, you can do so by using the [v0.5.0](https://github.com/go-acme/lego/releases/tag/v0.5.0) version.
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## Installation
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How to [install](https://go-acme.github.io/lego/installation/).
## Usage
- as a [CLI](https://go-acme.github.io/lego/usage/cli)
- as a [library](https://go-acme.github.io/lego/usage/library)
## Documentation
Documentation is hosted live at https://go-acme.github.io/lego/.
## DNS providers
Detailed documentation is available [here](https://go-acme.github.io/lego/dns).
<!-- START DNS PROVIDERS LIST -->
| | | | |
|---------------------------------------------------------------------------------|---------------------------------------------------------------------------------|---------------------------------------------------------------------------------|---------------------------------------------------------------------------------|
| [Akamai EdgeDNS](https://go-acme.github.io/lego/dns/edgedns/) | [Alibaba Cloud DNS](https://go-acme.github.io/lego/dns/alidns/) | [Amazon Lightsail](https://go-acme.github.io/lego/dns/lightsail/) | [Amazon Route 53](https://go-acme.github.io/lego/dns/route53/) |
| [ArvanCloud](https://go-acme.github.io/lego/dns/arvancloud/) | [Aurora DNS](https://go-acme.github.io/lego/dns/auroradns/) | [Autodns](https://go-acme.github.io/lego/dns/autodns/) | [Azure](https://go-acme.github.io/lego/dns/azure/) |
| [Bindman](https://go-acme.github.io/lego/dns/bindman/) | [Bluecat](https://go-acme.github.io/lego/dns/bluecat/) | [Checkdomain](https://go-acme.github.io/lego/dns/checkdomain/) | [CloudDNS](https://go-acme.github.io/lego/dns/clouddns/) |
| [Cloudflare](https://go-acme.github.io/lego/dns/cloudflare/) | [ClouDNS](https://go-acme.github.io/lego/dns/cloudns/) | [CloudXNS](https://go-acme.github.io/lego/dns/cloudxns/) | [ConoHa](https://go-acme.github.io/lego/dns/conoha/) |
| [Constellix](https://go-acme.github.io/lego/dns/constellix/) | [deSEC.io](https://go-acme.github.io/lego/dns/desec/) | [Designate DNSaaS for Openstack](https://go-acme.github.io/lego/dns/designate/) | [Digital Ocean](https://go-acme.github.io/lego/dns/digitalocean/) |
| [DNS Made Easy](https://go-acme.github.io/lego/dns/dnsmadeeasy/) | [DNSimple](https://go-acme.github.io/lego/dns/dnsimple/) | [DNSPod](https://go-acme.github.io/lego/dns/dnspod/) | [Domain Offensive (do.de)](https://go-acme.github.io/lego/dns/dode/) |
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| [Domeneshop](https://go-acme.github.io/lego/dns/domeneshop/) | [DreamHost](https://go-acme.github.io/lego/dns/dreamhost/) | [Duck DNS](https://go-acme.github.io/lego/dns/duckdns/) | [Dyn](https://go-acme.github.io/lego/dns/dyn/) |
| [Dynu](https://go-acme.github.io/lego/dns/dynu/) | [EasyDNS](https://go-acme.github.io/lego/dns/easydns/) | [Exoscale](https://go-acme.github.io/lego/dns/exoscale/) | [External program](https://go-acme.github.io/lego/dns/exec/) |
| [Gandi Live DNS (v5)](https://go-acme.github.io/lego/dns/gandiv5/) | [Gandi](https://go-acme.github.io/lego/dns/gandi/) | [Glesys](https://go-acme.github.io/lego/dns/glesys/) | [Go Daddy](https://go-acme.github.io/lego/dns/godaddy/) |
| [Google Cloud](https://go-acme.github.io/lego/dns/gcloud/) | [Hetzner](https://go-acme.github.io/lego/dns/hetzner/) | [Hosting.de](https://go-acme.github.io/lego/dns/hostingde/) | [HTTP request](https://go-acme.github.io/lego/dns/httpreq/) |
| [Hurricane Electric DNS](https://go-acme.github.io/lego/dns/hurricane/) | [HyperOne](https://go-acme.github.io/lego/dns/hyperone/) | [Infomaniak](https://go-acme.github.io/lego/dns/infomaniak/) | [Internet Initiative Japan](https://go-acme.github.io/lego/dns/iij/) |
| [INWX](https://go-acme.github.io/lego/dns/inwx/) | [Ionos](https://go-acme.github.io/lego/dns/ionos/) | [Joker](https://go-acme.github.io/lego/dns/joker/) | [Joohoi's ACME-DNS](https://go-acme.github.io/lego/dns/acme-dns/) |
| [Linode (v4)](https://go-acme.github.io/lego/dns/linode/) | [Liquid Web](https://go-acme.github.io/lego/dns/liquidweb/) | [Loopia](https://go-acme.github.io/lego/dns/loopia/) | [LuaDNS](https://go-acme.github.io/lego/dns/luadns/) |
| [Manual](https://go-acme.github.io/lego/dns/manual/) | [MyDNS.jp](https://go-acme.github.io/lego/dns/mydnsjp/) | [MythicBeasts](https://go-acme.github.io/lego/dns/mythicbeasts/) | [Name.com](https://go-acme.github.io/lego/dns/namedotcom/) |
| [Namecheap](https://go-acme.github.io/lego/dns/namecheap/) | [Namesilo](https://go-acme.github.io/lego/dns/namesilo/) | [Netcup](https://go-acme.github.io/lego/dns/netcup/) | [Netlify](https://go-acme.github.io/lego/dns/netlify/) |
| [NIFCloud](https://go-acme.github.io/lego/dns/nifcloud/) | [NS1](https://go-acme.github.io/lego/dns/ns1/) | [Open Telekom Cloud](https://go-acme.github.io/lego/dns/otc/) | [Oracle Cloud](https://go-acme.github.io/lego/dns/oraclecloud/) |
| [OVH](https://go-acme.github.io/lego/dns/ovh/) | [PowerDNS](https://go-acme.github.io/lego/dns/pdns/) | [Rackspace](https://go-acme.github.io/lego/dns/rackspace/) | [reg.ru](https://go-acme.github.io/lego/dns/regru/) |
| [RFC2136](https://go-acme.github.io/lego/dns/rfc2136/) | [RimuHosting](https://go-acme.github.io/lego/dns/rimuhosting/) | [Sakura Cloud](https://go-acme.github.io/lego/dns/sakuracloud/) | [Scaleway](https://go-acme.github.io/lego/dns/scaleway/) |
| [Selectel](https://go-acme.github.io/lego/dns/selectel/) | [Servercow](https://go-acme.github.io/lego/dns/servercow/) | [Stackpath](https://go-acme.github.io/lego/dns/stackpath/) | [TransIP](https://go-acme.github.io/lego/dns/transip/) |
| [VegaDNS](https://go-acme.github.io/lego/dns/vegadns/) | [Versio.[nl/eu/uk]](https://go-acme.github.io/lego/dns/versio/) | [Vscale](https://go-acme.github.io/lego/dns/vscale/) | [Vultr](https://go-acme.github.io/lego/dns/vultr/) |
| [Yandex](https://go-acme.github.io/lego/dns/yandex/) | [Zone.ee](https://go-acme.github.io/lego/dns/zoneee/) | [Zonomi](https://go-acme.github.io/lego/dns/zonomi/) | |
<!-- END DNS PROVIDERS LIST -->