A VPN like IPVanish, for example, comes with encryption technology that encodes your data from the source. This way, your online activity remains completely invisible, even to your ISP. Your data has to go through the VPN first before it goes out in search of the website that you’re looking for. Keep in mind that a “free proxy” service is not the same as a VPN server. “Free Proxy servers” are just glorified online billboards that will bombard you with ads while tracking your activity.