Documentation

Install guides, API reference and best practices to help you issue, deploy and automate with confidence.

Browse by topic

Create an account, request your first certificate

Nginx, Apache, IIS and more

DNS / file / email methods

Certbot, acme.sh and the API

Common errors and chain issues

REST API and webhooks

Configure the chain, private key and HTTP to HTTPS redirect.

Touchless certificate lifecycle with acme.sh.

Add a TXT record and verify domain ownership.

Add intermediate certificates to clear browser warnings.

Configure and distribute a cert for *.example.com.

Sign executables and add a trusted timestamp.

Request, download and revoke certificates in a few lines of code — embed trust into your product.

POST /v1/certificates
Authorization: Bearer <api_key>

{ "domain": "example.com",
  "type": "DV" }