Integration with the browser is worth mentioning that using the HTTPS protocol does not preclude the use HTTP. It is here that our browser will warn you about the burden of non-secure (HTTP), being connected to a secure (HTTPS). HTTPS protocols used by browsers such as Safari, Internet Explorer, Mozilla Firefox, Opera and Google Chrome, among others. Some browsers use an icon (usually a padlock) on the right of the address bar to indicate the existence of a secure communications protocol and even change the background color of the address bar in yellow (Firefox) or green (Internet Explorer) to identify safe sites. When connected to a site with an invalid certificate, older browsers may present the user with a dialog box asking if you want to continue. Most modern browsers display a warning along the entire window. Most modern browsers also show a lot more security information about the site in the address bar.Extended Validation Certificates address bar turn green in modern browsers. Most browsers also display a warning when a user visits a site containing a mixture of encrypted and unencrypted content. To know if a web page we are visiting, use the https protocol and is therefore safer with regard to the transmission of data we’re transcribed, we should note whether the address bar of your browser, is https at the beginning, instead of http, or do not do a scan.