@Ryan Hellyer - You were right, but most of those five plugins are not being used by your homepage. Like I said in a previous reply:
the number of detected plugins will depend on the url being checked (for example, a plugin dealing with comments won´t be detected on the homepage of many sites)
And, as I also tried to make clear before, our plugin detection feature is intended for finding out what particular plugin is being used for a certain functionality once you´ve seen it working and you liked the way it works, not for getting to know what plugins are installed in a WP site just for the heck of it. The reason I said you "were" right is because your site was a bit tricky and our tool missed a couple of active plugins. But it gets continuously improved, so if you check it again you´ll realize that now it detects two more plugins on your home url (not detected by the other tool since none of them are in that 65 plugins list).