Firewall rule that is limited to only 2 Hostnames

New to CloudFlare.

I am trying to write a Firewall rule that only applies to 2 domains. Say I have these hosts “www-a-com”, “www-b-com” and “www-c-com”

Will the following rule only apply to any requests to “www-a-com” and “www-b-com”: in {“www-a-com” “www-b-com”})


That cant work in the first place, as firewall rules are domain specific, hence one rule can never apply to different base domains.

That’s what I thought but given Rate limiting in tools is not site specific I wanted to confirm.