If a particular website is blocked in your country or (for technical reasons) is not available through your internet service provider, a web proxy server can help provide temporary (even slow and insecure) access to that website.
When should I use the VPN Service?
If you are looking for reliable online anonymity and security, using a VPN is the best method. This reliability comes at a cost, often the preferred method is to pay money rather than other unpleasant ways.
When should I use Tor?
To achieve extra security (close to dial-up speeds), Tor can be used with a VPN to offer a layer of privacy and anonymity required for operations such as using or publishing sensitive content.