It's 2021 and we are still finding a number of sites using http not HTTPS !
What is the difference https - means "secure", the site is running on a SSL (secure sockets layer) certificate. Which means commication between the web browser used to view and the server hosting the site is encrypted making the data transfer between the two parties secure. Most payment gateways require encrypted communications. Also Google "prefers" secure sites and a number of browsers indicate automatically to site visitors if the site is using secure https: - closed padlock icon in front of site URL.
At NZJoomla we offer a range of SSL certiciates - including the free Letsencrypt certicate for our hosted sites. Contact us now if you are looking for a secure hosted site.