I use pinterest

I am still new user of a pi-hole.

I have put in a bunch of list into the blacklist. Pinterest is a site I occasionally go do. I have to white list 1.pinimg.com in order for it to work. Is there something I should know why 1.pinimg.com would be on a block list?

(edit .5) So I took it off the whitelist and threw it back on the blacklist and for some reason I pinterest is not broken.