Glossary

What is Let's Encrypt?

Last updated June 15, 2026
Reviewed by Better-PaaS team

A certificate authority that provides free TLS certificates. Learn what Let's Encrypt means in self-hosted deployment and Better-PaaS workflows.

Overview

A certificate authority that provides free TLS certificates.

Definition

A certificate authority that provides free TLS certificates.

Real-world example

Let's Encrypt issues a free 90-day certificate for your domain; Caddy renews it automatically before expiry.

Common mistake

Hitting rate limits by deleting and re-adding the same domain dozens of times in one day during testing.

Better-PaaS in practice

Certificates are managed through Caddy. Check DNS, ports 80/443, and app health if issuance fails.

FAQ

Is Let's Encrypt only relevant to Better-PaaS?

No. Let's Encrypt appears across Docker, cloud platforms, and self-hosted tooling. Better-PaaS exposes the concept in deploy logs, dashboard fields, or docs when it affects your app.