When using one of the above domains as a vanity domain, keep in mind that every environment domain must have HTTPS provisioned or that environment's domain will be inaccessible. Pantheon is not a domain registrar, but we've created documentation for several popular DNS managers: If you don't already own a domain name, register one with a third-party provider. Adding a custom domain to an environment other than Live will not permit crawlers to that environment. Pantheon does not allow crawlers on Dev, Test, or Multidev environments. Crawlers are allowed on the Live environment for requests served with a custom domain (e.g., If you attempt to access your Live environment with a platform domain, even if you have a domain associated with the environment, the default robots.txt will be served. Pantheon serves a default robots.txt that disallows crawlers on platform domains ( /*.pantheonsite.io, /*.pantheon.io, /*., and /*.). See Redirect to HTTPS for more information. Redirecting to HTTPS during development and testing is a good best practice to ensure you are ready to go live with HTTPS. Each environment (Dev, Test, Live, each Multidev) is accessible via the platform domain, matching the following patterns:Īll platform domains are available over HTTPS. Pantheon issues platform domains for all environments. Pantheon delivers on-demand training to help development teams master our platform and improve their internal WebOps. Optimize your dev team and streamline internal workflows.