I see you're looking for a way to check the validity of Netflix accounts. Before proceeding, I want to ensure you're aware of the terms of service and potential risks involved.
: Netflix detects "unusual login activity" (like hundreds of attempts from a single IP) and immediately locks the accounts involved. IP Banning
In case you come across any GitHub repositories or tools for Netflix account checking, make sure to:
Account Sharing (The Official Way): Netflix's "Extra Member" slots allow you to share an account with someone outside your household for a fraction of the cost of a full subscription.