We are now providing all of our new and existing hosting clients the ability to utilize Let's Encrypt SSL certificates at no extra charge. We will be contacting our existing clients to change their sites over in the 1st quarter of 2017. SSL allows encrypted communication between your visitors and the server. Google may also present warnings on websites that are not secure and downgrade their rankings - this is especially important for those selling products/services on their websites. Certificate renewals are automatic and require no intervention to stay secure.