What a Post Is For
A feed is where people already scroll. You should be there if that is how your buyers spend time. The post is a message. It is not a service page, a price you can keep current, or a form that queues when you are offline.
Social media marketing is the work of sending people. The site is the page they should land on. A bio that says “link in bio” to a Linktree of twelve offers is still a menu.
What the Site Must Still Do
One offer on the page the post promised. Proof you can stand behind. WhatsApp or a short form on a phone. Titles and headings if the URL should also earn search. That is the same rule as ads: the click already chose.
If the campaign is one launch, that may be a landing page. If the services must live all year, you need a site. The post can still send traffic. It should not be the only place the offer exists.
Rented Reach, Same as a Portal
Platforms change rules. Accounts get limited. Organic reach drops without a warning you can plan around. That is the same problem as a marketplace listing. Read portals versus your own website if you already live on rented shelves.
Brand search still needs a domain. A buyer who saw you on a reel and later typed your name should not land on a parked page or an empty Facebook shop.
When the Homepage Is the Wrong Destination
A post about one product, one course date, or one clinic offer should not open a homepage that talks about everything. That mismatch is how you spend creative on a menu. Ads should not land on Home. Neither should a post with intent.
If you do not yet have the page, say so before you boost the post. We would rather ship the URL first than watch paid reach bounce.