I appreciate why the title was modified from the original, but the mistaken use of "it's" rather than "its" was introduced in the process and should be corrected.
(I've done so.)
> Amazon has ceded control of hi’s site to a 3rd party...
Obviously incorrect.
I prefer the handy jingle, "If it's supposed to be possessive, it's just i-t-s, if it's supposed to be a contraction it's i-t-apostrophe-s. Scalawag."
Disregarding the semantic absurdity (and the e/i mismatch), the rule works fine: "his an apostrophe" should look a lot more wrong to anyone with enough understanding of English that its/it's mistakes make a difference than "he's an apostrophe".
"He's" also only ever means "he is" or "he has", just like "it's". That's the entire point of this little memory aid.