How Can I Tell If My VPN Is Actually Preventing IP Leaks? or Are IP Leaks Still a Common Issue With M

OP here. Wow, didn’t expect so many replies—thanks y’all!

Tried ipleak.net and my VPN passed (phew). But now I’m curious about IPv6 leaks… any easy way to test for those?

Also, anyone here use Mullvad? Heard good things but wanna hear real experiences.

(And yeah, free VPNs are sketch. Learned that the hard way lol.)