Download VPN So basically, accessing the Internet through a VPN tunnel is like putting a package into a box and then sending it to someone. Nobody can see what’s inside the box until it's opened, or in this case, decrypted. 2.1 Authentication Internet Glossary The Chrome extension is an HTTPS proxy, not a VPN, that selectively routes your browser traffic through the remote server. It’s not as secure as a VPN but it will get the job done in most cases. There are no tracking libraries or ad injection to worry about. If you’re looking for a competitive free VPN, Windscribe, which also features highly on’s recommended free VPNs, should be at the top of the list. Iran's never been a fan of the real Internet. It completely blocked off Google and Gmail back… Jump up ^ Layer Two Tunneling Protocol "L2TP", RFC 2661, W. Townsley et al., August 1999