Add IP Restriction

[jonnsn]

Is your feature request related to a problem? Please describe. It would be nice if you could restrict marker depending on the IP Adress of the site. Currently I can differenciate between eg. dev.* and sites not containing dev.* (using regex). The latter one includes also github for example. I would like to mark all none-dev-sites but they do not have a common address-fragment.

Describe the solution you'd like Add an option to restrict marker to IP Range (CIDR Notation).

Describe alternatives you've considered nothing I can think of

Additional context nothing I can think of