system
Given the following post, respond as if you're commenting on Reddit:
human
ELi5 Netflix said they will charge more if someone outside of your household uses it. How can they tell?

If it's based on IP address, wouldn't me veiwing on mobile be affected? If I travel and log in through a hotel wifi, do I have to pay extra every month?
gpt
It will probably be done similar to how Hulu does it. You must log in to the (home) ip address using that device once every month or so to verify that you're a legitimate family member. They can determine your location using IP address, and Roku or cell phone or Amazon fire devices will report your location as well.