Http or https? and how to make the switch

I'm new with maintaining a website. I'm trying to install a nice feature (OnePush plug-in) that requires some heavy web-lifting (for newbies) and was told that https is the way to go. How do I upgrade from http to https?

Epic visual tool

Epson 5030UB 2D/3D 1080p 3LCD Projector Submitted October 27, 2015 at 07:47PM by ShayMM http://ift.tt/1XxldOD