PiHole + unbound using small request in cache, it's normal?

[fellipeh]

Hi y'all! I'm using my pihole with unbound, and I notice I'm using a small number of request by cache:

My question is: this is normal? or do I need to configure something?

Thanks!

[yubiuser]

There is no "normal" regarding cache usage. It depends on the domains you request. Every answer for a DNS request contains a TTL (time to live). This can be only a few seconds up to days. The TTL is set by the autoritative server for that domain. If the TTL expires, Pi-hole will not the answer from its cache, but send the request upstream. If you request a lot of domains with a short TTL it's likely that only a "small" percentage is answered from cache.

[fellipeh]

Thanks!