Requests from pi.hole without IP but ::

[Bucking_Horn]

They are completely normal if you enable DNSSEC within Pi-hole, related to Pi-hole's DNSSEC validation, see also

Understanding DNSSEC validation using Pi-hole's Query Log

These DNSSEC queries are generated internally by FTL and are directly sent (in contrast to going the usual way through the operating system resolver routines). This also helps you telling them apart from other queries done on the same machine (localhost) but another process. Only if you are sure nothing is using unbound in your home network (unlikely to happen). You gain nothing but some more insight, the protection should be the same*. *) Plus/minus some bugs that can always be there. Witho…