If you think that your browser's little padlock icon isn't enough to  verify a website's security (but don't want to install a full-fledged  app), you now have a better solution. 
 Google has released a new Chrome Canary  build that includes a security panel in amidst the usual developer  options.  Open it and you'll not only learn about the encryption for the  host page, but the encryption for all the other connected sites, too. 
 This is ostensibly meant to help developers safeguard their sites, but  it'll also let you double-check for hidden security flaws  on any site where you suspect that something's amiss.  It'll take a  while longer before this pops up in more refined versions of Chrome, so  give Canary a shot if you want to verify a page before you trust it with  your data.