Hsts on google.com
Is really Google.com on HSTS ?
Google announced bringing HTTP Strict Transport Security (abbreviated as HSTS) to www.google.com. HSTS is a web security policy mechanism which allows a web server to enforce the use of HTTPS in a compliant User Agent (UA), such as a web browser. It lets a website tell web browsers that it should only be communicated with using HTTPS instead of using HTTP.
read more