Hi, i have PiHole installed inside a docker container in a Debian/Linux host; what i saw is that with something like 80000 requests that PiHole registered, 92-93% of them are made to two domains, 60-70% of them to “registry-1.docker.io” and the rest of them to “auth.docker.io”, the remaining 7% is regular traffic.
Anybody know if it’s normal?
Eventualy what can i do to reduce requests’s quantity (if it’s possible of course)?
Thank you all in advance
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Hi,
I have the same issue but no solution, unfortunately.
All my searches on the internet didn’t give me any solution.
Pi-hole is using the cache, but it’s still messing my stats.
FYI, my Pi-Hole docker container runs on a Synology NAS (using macvlan and bridge)
I found why I have the issue. I’m running Watchtower for updating my 16 dockers container. By default, Watchtower checks every 5 minutes if a new image is available for all dockers. This creates all these requests.
I increase the delay to 6 hours (–interval 21600). The number of requests is more reasonable now.
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I was using Watchtower too!!! 
Thank you lucas!!!