There is a service ran by ICANN called the “trademark clearlinghouse”. It is a subscription service that trademark owners, e.g. Netflix, can use to be notified of any domain that is registered and may infringe on their trademark. It even allows for wildcard patterns in ongoing searches.

How do I know this? Because i received a takedown notice regarding a domain I run to sell background job licenses (oban.dev). The business is entirely unrelated, but the clearinghouse alerting system still brought it to the trademark holder’s attention.