HTTP Strict Transport Security
Widely available
The Strict-Transport-Security HTTP response header informs browsers that the site should only be accessed using HTTPS, and that any future attempts to access it using HTTP should automatically be converted to HTTPS. Also known as HSTS.
To learn more, see
Strict-Transport-Security at MDN.
Compatibility
- Chrome 4 Released on 2010-01-25
- Chrome Android 18 Released on 2012-06-27
- Edge 12 Released on 2015-07-29
- Firefox 4 Released on 2011-03-22
- Firefox for Android 4 Released on 2011-03-29
- Safari 7 Released on 2013-10-22
- Safari on iOS 7 Released on 2013-09-18