Yes in the literal sense you could have certificates like: *.internal.example.co...

		stevekemp on March 13, 2018 \| parent \| context \| favorite \| on: ACME v2 and Wildcard Certificate Support is Live Yes in the literal sense you could have certificates like: `.internal.example.com .external.example.com` But no in the sense that you were asking, where you'd want to register certificate for multi-level wildcard: `..example.com`