The 'not secure' icon that you are seeing in your browser is a change that Google have made - it is to encourage site users to purchase security certificates. Websites hosted with Create a Website do not need a certificate as the shopping cart has one automatically with us. 

However, should you wish to purchase a private certificate for your domain, we can certainly provide you with this. Visit our site, and purchase the Security Certificate you require. Should you need help with selecting the right certificate for your needs, please contact us.