traefik/docs/content/reference/install-configuration/tls/certificate-resolvers/overview.md

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Certificates Resolver	Automatic Certificate Management using Let's Encrypt/Vault and Tailscale.

In Traefik, TLS Certificates can be generated using Certificates Resolvers.

In Traefik, two certificate resolvers exist:

• acme: It allows generating ACME certificates stored in a file (not distributed).
• tailscale: It allows provisioning TLS certificates for internal Tailscale services.

The Certificates resolvers are defined in the static configuration.

!!! note Referencing a certificate resolver Defining a certificate resolver does not imply that routers are going to use it automatically. Each router or entrypoint that is meant to use the resolver must explicitly reference it.

{!traefik-for-business-applications.md!}