Single dot (".") query and how I could block it?

[mangkoran]

Hi all. I noticed my internet feels slow whenever I open a website for the first time. After I checked AGH log, I found a lot of single dot (".") query coming from my router which I believe slows down AGH. What is this query? And how I could block it?

AGH v0.107.48
OpenWRT w/ kernel 6.6.30
dnsmasq forwards to AGH
wireguard-tools 1.0.20210914-r3

[ainar-g]

See #6049 (comment).

[mangkoran]

Apologize I deleted my previous comments as I have misunderstandings.

After recollecting my findings, I decided to open #7058 instead