https://lists.freebsd.org/archives/freebsd-bugs/2026-February/032985.html
[Bug 293422] ifmcstat(8): should report last observed MLDv1/MLDv2 querier on-link for each ifnet
https://archive.grafana.com/docs/mimir/v2.12.x/references/architecture/components/querier/
Grafana Mimir querier | Grafana Mimir documentation
The querier evaluates PromQL expressions.
grafanamimirquerierdocumentation