When you want to publish products on Google Shopping it is important to understand the requirements when it comes to the checkout & security. The basic rule is that if you are collecting personal information than a SSL certificate is required.
Lets delve into the first topic which is when you need to have a SSL Certificate:
If you have a page where a customer needs to login to gain access to there account than this page and anything associated to the account pages need to be loaded under https
A SSL certificate is also required when the checkout collects any of the following personal details
When you buy a SSL Certificate the most common question is, which one should I buy? A basic domain validation certificate that can be ether shared or a dedicated IP is the appropriated answer. I suggest as you are a merchant is to use a EV certificate.
An Extended Validation Certificate (EV) is a public key certificate requiring verification of the requesting entity’s identity by a certificate authority (CA). EV certificates are mainly presented by web servers to web browsers for use with SSL/TLS connections.
A list of trusted certificate companies with modern browsers
When you have your SSL Certifiate you need to make sure it is correctly installed. You can use two different sites to check all requirements.
Can be checked on digicert.com
These validations can be check on ssllabs.com
Before we submit your data feed, or request for a re approval, is to ensure the following thing are checked