lego logo

Automatic Certificates and HTTPS for everyone.

# Lego Let's Encrypt client and ACME library written in Go. [![Go Reference](https://pkg.go.dev/badge/github.com/go-acme/lego/v4.svg)](https://pkg.go.dev/github.com/go-acme/lego/v4) [![Build Status](https://github.com//go-acme/lego/workflows/Main/badge.svg?branch=master)](https://github.com//go-acme/lego/actions) [![Docker Pulls](https://img.shields.io/docker/pulls/goacme/lego.svg)](https://hub.docker.com/r/goacme/lego/) ## Features - ACME v2 [RFC 8555](https://www.rfc-editor.org/rfc/rfc8555.html) - Support [RFC 8737](https://www.rfc-editor.org/rfc/rfc8737.html): TLS Application‑Layer Protocol Negotiation (ALPN) Challenge Extension - Support [RFC 8738](https://www.rfc-editor.org/rfc/rfc8738.html): certificates for IP addresses - Support [draft-ietf-acme-ari-03](https://datatracker.ietf.org/doc/draft-ietf-acme-ari/): 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](https://letsencrypt.org/2019/10/09/onboarding-your-customers-with-lets-encrypt-and-acme.html) by default - 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/) - Certificate bundling - OCSP helper function ## Installation 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). | | | | | |---------------------------------------------------------------------------------|---------------------------------------------------------------------------------|---------------------------------------------------------------------------------|---------------------------------------------------------------------------------| | [Akamai EdgeDNS](https://go-acme.github.io/lego/dns/edgedns/) | [Alibaba Cloud DNS](https://go-acme.github.io/lego/dns/alidns/) | [all-inkl](https://go-acme.github.io/lego/dns/allinkl/) | [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 (deprecated)](https://go-acme.github.io/lego/dns/azure/) | [Azure DNS](https://go-acme.github.io/lego/dns/azuredns/) | [Bindman](https://go-acme.github.io/lego/dns/bindman/) | [Bluecat](https://go-acme.github.io/lego/dns/bluecat/) | | [Brandit](https://go-acme.github.io/lego/dns/brandit/) | [Bunny](https://go-acme.github.io/lego/dns/bunny/) | [Checkdomain](https://go-acme.github.io/lego/dns/checkdomain/) | [Civo](https://go-acme.github.io/lego/dns/civo/) | | [Cloud.ru](https://go-acme.github.io/lego/dns/cloudru/) | [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/) | [CPanel/WHM](https://go-acme.github.io/lego/dns/cpanel/) | | [Derak Cloud](https://go-acme.github.io/lego/dns/derak/) | [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/) | [dnsHome.de](https://go-acme.github.io/lego/dns/dnshomede/) | [DNSimple](https://go-acme.github.io/lego/dns/dnsimple/) | [DNSPod (deprecated)](https://go-acme.github.io/lego/dns/dnspod/) | | [Domain Offensive (do.de)](https://go-acme.github.io/lego/dns/dode/) | [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/) | [Efficient IP](https://go-acme.github.io/lego/dns/efficientip/) | | [Epik](https://go-acme.github.io/lego/dns/epik/) | [Exoscale](https://go-acme.github.io/lego/dns/exoscale/) | [External program](https://go-acme.github.io/lego/dns/exec/) | [freemyip.com](https://go-acme.github.io/lego/dns/freemyip/) | | [G-Core](https://go-acme.github.io/lego/dns/gcore/) | [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/) | [Google Domains](https://go-acme.github.io/lego/dns/googledomains/) | [Hetzner](https://go-acme.github.io/lego/dns/hetzner/) | | [Hosting.de](https://go-acme.github.io/lego/dns/hostingde/) | [Hosttech](https://go-acme.github.io/lego/dns/hosttech/) | [HTTP request](https://go-acme.github.io/lego/dns/httpreq/) | [http.net](https://go-acme.github.io/lego/dns/httpnet/) | | [Hurricane Electric DNS](https://go-acme.github.io/lego/dns/hurricane/) | [HyperOne](https://go-acme.github.io/lego/dns/hyperone/) | [IBM Cloud (SoftLayer)](https://go-acme.github.io/lego/dns/ibmcloud/) | [IIJ DNS Platform Service](https://go-acme.github.io/lego/dns/iijdpf/) | | [Infoblox](https://go-acme.github.io/lego/dns/infoblox/) | [Infomaniak](https://go-acme.github.io/lego/dns/infomaniak/) | [Internet Initiative Japan](https://go-acme.github.io/lego/dns/iij/) | [Internet.bs](https://go-acme.github.io/lego/dns/internetbs/) | | [INWX](https://go-acme.github.io/lego/dns/inwx/) | [Ionos](https://go-acme.github.io/lego/dns/ionos/) | [IPv64](https://go-acme.github.io/lego/dns/ipv64/) | [iwantmyname](https://go-acme.github.io/lego/dns/iwantmyname/) | | [Joker](https://go-acme.github.io/lego/dns/joker/) | [Joohoi's ACME-DNS](https://go-acme.github.io/lego/dns/acme-dns/) | [Liara](https://go-acme.github.io/lego/dns/liara/) | [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/) | [Mail-in-a-Box](https://go-acme.github.io/lego/dns/mailinabox/) | | [Manual](https://go-acme.github.io/lego/dns/manual/) | [Metaname](https://go-acme.github.io/lego/dns/metaname/) | [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/) | [NearlyFreeSpeech.NET](https://go-acme.github.io/lego/dns/nearlyfreespeech/) | | [Netcup](https://go-acme.github.io/lego/dns/netcup/) | [Netlify](https://go-acme.github.io/lego/dns/netlify/) | [Nicmanager](https://go-acme.github.io/lego/dns/nicmanager/) | [NIFCloud](https://go-acme.github.io/lego/dns/nifcloud/) | | [Njalla](https://go-acme.github.io/lego/dns/njalla/) | [Nodion](https://go-acme.github.io/lego/dns/nodion/) | [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/) | [plesk.com](https://go-acme.github.io/lego/dns/plesk/) | [Porkbun](https://go-acme.github.io/lego/dns/porkbun/) | | [PowerDNS](https://go-acme.github.io/lego/dns/pdns/) | [Rackspace](https://go-acme.github.io/lego/dns/rackspace/) | [RcodeZero](https://go-acme.github.io/lego/dns/rcodezero/) | [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 v2](https://go-acme.github.io/lego/dns/selectelv2/) | [Selectel](https://go-acme.github.io/lego/dns/selectel/) | [Servercow](https://go-acme.github.io/lego/dns/servercow/) | [Shellrent](https://go-acme.github.io/lego/dns/shellrent/) | | [Simply.com](https://go-acme.github.io/lego/dns/simply/) | [Sonic](https://go-acme.github.io/lego/dns/sonic/) | [Stackpath](https://go-acme.github.io/lego/dns/stackpath/) | [Tencent Cloud DNS](https://go-acme.github.io/lego/dns/tencentcloud/) | | [TransIP](https://go-acme.github.io/lego/dns/transip/) | [UKFast SafeDNS](https://go-acme.github.io/lego/dns/safedns/) | [Ultradns](https://go-acme.github.io/lego/dns/ultradns/) | [Variomedia](https://go-acme.github.io/lego/dns/variomedia/) | | [VegaDNS](https://go-acme.github.io/lego/dns/vegadns/) | [Vercel](https://go-acme.github.io/lego/dns/vercel/) | [Versio.[nl/eu/uk]](https://go-acme.github.io/lego/dns/versio/) | [VinylDNS](https://go-acme.github.io/lego/dns/vinyldns/) | | [VK Cloud](https://go-acme.github.io/lego/dns/vkcloud/) | [Vscale](https://go-acme.github.io/lego/dns/vscale/) | [Vultr](https://go-acme.github.io/lego/dns/vultr/) | [Webnames](https://go-acme.github.io/lego/dns/webnames/) | | [Websupport](https://go-acme.github.io/lego/dns/websupport/) | [WEDOS](https://go-acme.github.io/lego/dns/wedos/) | [Yandex 360](https://go-acme.github.io/lego/dns/yandex360/) | [Yandex Cloud](https://go-acme.github.io/lego/dns/yandexcloud/) | | [Yandex PDD](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/) | | If your DNS provider is not supported, please open an [issue](https://github.com/go-acme/lego/issues/new?assignees=&labels=enhancement%2C+new-provider&template=new_dns_provider.md).