Majority of Google’s connections are encrypted. But in order to strengthen security and enhance encryption level Google has introduced HTTP Strict Transport Security (HSTS) encryption. HSTS encryption mechanism prevents users from jumping into harmful HTTP URLs which are typed incorrect. HSTS can transfer the direction to safe direction in internet from insecure URLs. This tells the browser to detach from all unsafe HTTP protocols since it is an IETF protocol. Thus prevents from session hijacking and protocol downgrade attacks. It can also prevent from MIMT and prevent attackers with invalid digital certificates. Google has turned on HSTS for www.google.com but it will take time for further implementation.