WhoIs lookup for sender domain

I've recently been getting spam emails that are bypassing Gmail's spam filter, whenever this happens, I like to report the domain to the registrar which first involves doing a WhoIs lookup on the domain of the sender.

Currently to do this, I have to copy the sender's email and then remove everything up to and including the @. It would be useful if right clicking on the sender's email provided an option in the context menu to open a browser to a WhoIs lookup page for the sender's domain, for example https://whois.domaintools.com/[SENDER_DOMAIN_HERE].

I understand this may be a niche feature but I believe it would be fairly simple to implement.