Beginning in July, Google Chrome will start marking all http websites as “Not Secure”. So if your website URL starts with http:// then your website visitors will see a “Not Secure” notice like this:
With an SSL certificate installed, your website will labelled “Secure” with the green lock icon and https in the address bar.
What is SSL?
SSL essentially encrypts the data between the visitor’s web browser and your website. This is particularly important for Ecommerce websites where personal data and payment details are entered. The visual sign of HTTPS also provides an additional level of trust to the visitor.