As the title WordPress Post as Subdomain Lite says it all this plugin convert any of your single Post into sub domain used for wordpress seo.
WordPress Post as Subdomain Pro empower WordPress to easily convert any single Post into Subdomains for website.
Do not forget to setup a WildCard Subdomain.
Simply Create a Post, keep the Post id in mind. Then Visit Posts > Subdomains > Enter Post ID and hit save.
You may require one time Configuration of adding Wildcard Subdomain but most of the Host already did it.
If you want to know how to add Wildcard Subdomain
Convert All Posts to Subdomain
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