... It's not the same company. The "HotBot" name and domain were sold for $155k in 2016 to an unnamed buyer[0]

0 https://en.wikipedia.org/wiki/HotBot

I was a loyal mamma.com user until Google came along. I always liked the quality of results and the UI. They were swallowed up by Copernic who appear to still exist in the desktop search space.