Probably unlikely that McDonalds built that themselves. I would guess they contracted it out. It's been a long time since I knew anyone in their in-house IT division but it was entirely back office stuff not public facing.
[1]: This company: https://www.rdisoftware.com/
In-house IT typically controls the DNS 'A' record and reviews/oversees deployment of provided assets.
> "Do you want to search <query> in news section?"
I'd guess it was built by an Eastern European agency.