lockOnce your SSL certificate is installed Joomla 3 can be told to make use of it. Joomla 3 SSL (https://) for secure transactions can be setup globally or per Menu Item.

 Fast way - Globally

In Joomla Administrator go to  System -> Global Configuration [Server]

server-settings-ssl

Set Force SSL to Entire Site.
Now all pages http requests will be redirected to https.

Setting Per Menu Item

In the Meta Data tab of a Menu Item there is the Secure setting.

joomla3-menu-secure-setting

 The default setting is Ignore.
On will use https.
Off
will use http.

You will need to set the secure links to On and links to non-secure pages to Off. Leaving links set to Ignore could cause unpredictable results. This is not hard to set up for a few Menu Items,but could take a while if you have a lot.

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