Google.com.onion - resolved normally

Hello,

I was looking through the dashboard and noticed a site, google.com.onion, has been getting a lot of hits (90 yesterday alone). My research shows that .onion extensions are used for Tor websites on the deep web, but I can't find any information about this particular website and why it would resolve normally when I can't access it. Does anyone know about this website and how it could be accessed even though I have the settings to block proxys? Thanks so much for your help!