Are there any live metrics for lemmy and piefed?

I've seen a variety of people running stats dashboards of various sorts. Some spring up, others go down. A couple:

https://lemmy.fediverse.observer/stats

https://piefed.fediverse.observer/stats

https://lestat.org/ doesn't have all instances, but can be a useful dashboard for major instances.

EDIT: Lemmyverse.net walks the Threadiverse to update its index and gathers various interesting types of information:

https://lemmyverse.net/inspect

https://lemmyverse.net/inspect/version-chart

They also let you download their data, if you want to do your own analysis.

EDIT2: https://fedidb.com/