AMPforWP - Subdomain Endpoints for AMP allows you to add your own Custom AMP Endpoints as Subdomian.Using this extension you can customize the structure of AMP URL as per your requirement.1. Set Subdomain As AMP URL
It will allow you to add your own Subdomain as an AMP URL (amp.website.com)2. Easy to shift AMP to the middle of the URL
It will even allow you to set AMP in the middle of the URL (website.com/amp/article/ )3. Use any Custom Subdomain Name
While Placing the Subdomain you can use any custom subdomain name.