To help you make major infrastructure changes safely, you can enable maintenance mode for any paid web service:

A web service in maintenance mode remains up and running, but it's unreachable from the public internet. This helps you ensure that no user actions are in progress while you make changes.

A web service in maintenance mode is still reachable over your private network and via SSH.

Maintenance mode is available only for paid web services.

That's it! After you confirm, Render immediately enables maintenance mode for the service. You can disable it at any time by toggling the switch back.

While your web service is in maintenance mode, Render responds to every incoming request with a 503 Service Unavailable status code and your specified maintenance page: