Pi-hole frontend showing itself as "active client" without IP address, MAC address, and interface – only DS and DNSKEY queries visible, configuration issue?

[Boernd]

Expected Behaviour:

pi-hole should not query web addresses as a client.

Actual Behaviour:

I've noticed a strange behavior with my Pi-hole. It shows itself as an active client, but without an IP address, MAC address, or interface. Only the hostname "Pi-hole" is visible. Additionally, in the Recent Queries list, only DS and DNSKEY queries are shown.

My question is whether this points to a configuration issue, or if I’m missing something here. Has anyone experienced something similar and could offer some advice or a solution?
I have already checked the suggested solution at [Pi.hole client in Query log], but unfortunately, it doesn't help me in this case.

Thank you in advance for your help!

[Bucking_Horn]

This is normal and expected if you have enabled DNSSEC validation:
You are observing queries that indeed Pi-hole itself issues in order to validate a domain a client has requested, see also Understanding DNSSEC validation using Pi-hole's Query Log.

[Boernd]

Thx. I`ve found this articel yesterday this helped me to understand this issue.