Safari hides the http: or https:, so how can I tell if I'm viewing a page over SSL? Some pages show issuer information in the URL bar, but not all of them. So the ones that show issuer info are secure, but I'd rather not have to reload the other pages in Chrome just to determine whether I have a secure connection to it.
On HTTPS pages Safari shows a small padlock.
(screen made with Safari 6.0.2)
You can see this a little easier in these larger snaps - one of a site where the SSL certificate was not trusted implicitly (signed or otherwise trusted by your Mac) and another where the certificate was valid and signed up the chain by the Mac and shown in green.
As a follow up to the answer by @chrisg I recently noticed that some Safari Extensions will also hide the lock icon, presumably because they send or receive information over http. So if you are having problems when no site will show the padlock, lock through your Extensions...
(I know this question is a bit old, but I thought this might be valuable information)
In response to Matthieu post, the https or EV Disclosure is only visible when the page initially loads, once finished it hides it again which is really annoying. The only way to show it i've found so far is Lauri answer by pressing ⌘LCV which is nuts. If im paying for an EV I want my customers to see it!