It’s hard to be an internet user without being bombarded with ads for VPNs. Be it on online videos, podcasts or even the occasional TV ad, VPNs are headed for the mainstream. But with the companies making big claims that lack nuance, do you really know what your VPN subscription is capable of? We run through the main questions you might ask before shelling out for a year’s subscription. Browse all our VPN reviews to find a brand that can be trusted. Quiz: Test your VPN knowledge Test yourself with five questions on what VPNs can and can’t do.