Why do you need a certificate?
An SSL certificate is important to any website that sells products and services or captures sensitive information, as it guarantees that all information sent and received stays private and secure.
Customers who visit your website will know that you have encryption in place with "https" and a padlock icon appearing in their browser’s address bar. This assures customers that their information is safe.
SSL improves SEO
Google has taken the stance that any website running on https will have a positive search engine optimisation (SEO) ranking advantage over websites running on http. This means that you stand a greater chance of ranking higher than your competitors if your website uses SSL.