Add Scope Constraint Optional Argument

[mr-pmillz]

Is your feature request related to a problem? Please describe.
It would be a nice feature to optionally include a scope constraint by domain so that results are constrained to only subdomains of the specified constraint domain or a list of constraint domains in a file.

Describe the solution you'd like
When --scope example.com is specified, only return subdomains of *.example.com. Ex:
api.example.com
foobarbaz.example.com
etc...

Describe alternatives you've considered
I'd like to use this tool but currently too many third-party hosts are returned and it would be very useful to only get hosts that are in-scope for a penetration test that you're authorized to test.

Additional context
I could manually parse the output results to filter out-of-scope items but this would be a great feature to have built-in to the project.

[mr-pmillz]

Whoops! Nevermind, I totally missed this flag haha

-d, -domain string[]  Filter results belonging to these domains (comma separated)

perhaps could rename the -d --domain flag to scope, idk, closing issue 😅

[edoardottt]

No worries @mr-pmillz , if you have other suggestions just open other issues :)