The internet is becoming more secure with the help of Google. Starting in January 2017, Google has an escalating plan to drive websites to become secure Read Here. As an incentive, Google suggests that your SEO ranking may be improved as well Read Here.
CMD provides free SSL Certificates for all domains and subdomains that host with CMD hosting.
There is a product called an SSL Certificate that you can usually purchase and attach to your website domain. The SSL Certificate is what provides the encryption that makes your website secure.
Simple, just type in https:// and your domain name in the browser bar and see what happens. If your website is secure, it will show normally and have a green padlock on the browser address bar.