How do we know this? EVERY WEBSITE you use knows your IP, unless you use a VPN.
Your location:
How do we know this? EVERYONE on the Internet knows this. When your IP is visible, websites can know your location. (This has nothing to do with location sharing permissions)
Your ISP:
How do we know this? EVERYONE on the Internet knows this. When your IP is visible, websites can know your ISP.
