How to automatically start safari on iOS without internet access?

Question

Computer networks

Good afternoon!
Available:
1.mikrotik + hotspot
2. Apple
Task: when connecting to the hotspot, the Safari browser should open to one site, but access to others should be closed (Internet) and when you try to enter the url, redirect to our site.
Tell me how can I implement this?
Register trusted Apple sites in the garden that he understood that the Internet type appeared and the browser opened ....?