HTTP Strict Transport Security
HTTP Strict Transport Security (HSTS) is an opt-in security enhancement that is specified by a web application through the use of a special response header. Once a supported browser receives this header that browser will prevent any communications from being sent over HTTP to the specified domain and will instead send all communications over HTTPS.
Example of the HTTP strict transport security header Strict-Transport-Security: max-age=60000
|| Lowest Version Supported|
| Internet Explorer
|| no support|