Delete me please. I figured it out

General Off topic
1

I literally installed pi-hole yesterday, May 6, and something on the network is hitting it like crazy.
I've blacklisted mdrjr.net for now as it has 4840 hits and counting.
I have pi-hole installed on an odroid xu4 running ubuntu 16, so I am also going to ask odroid about the site as well.

Of note, the pi-hole sits behind a pfsense box with pfblocker running, and there is nothing in those logs either, so I am thinking it isn't a bad site.

Thank you!

2

You should probably say what the issue was (to help other users that might experience something similar) and what was "calling" that domain.

Domain seems to be a private (personal) domain, not an organisation.

3

Yes, private address that is an odroid software repository. When I did a whois, I saw it was registered in Brazil which had me concerned. Apparently the owner has a multitude of repositories he hosts for various distros.