The PSL just moves the label for the definition of the domain from which the rate limit is determined.
Without PSL entry:
- 50 certs per week for
example.com
PSL entry example.com
:
- 50 certs per week for
foo.example.com
- 50 certs per week for
bar.example.com
- et c.
PSL entry *.example.com
:
- 50 certs per week for
baz.foo.example.com
- 50 certs per week for
bla.foo.example.com
- 50 certs per week for
etc.bar.example.com
- et c.