Especially since links can already be pretty private by default if they are random enough and not shared on any site where a crawler can access them. If you wan

Especially since links can already be pretty private by default if they are random enough and not shared on any site where a crawler can access them. If you want actual security, you need to protect content on your end. If you don't really care and just don't want it publicly indexed, share it privately and keep it off the surface web.