How can a client of a reseller get his SSL certificate information?

HostGator can provide that information directly to the reseller.

It is the reseller's responsibility to provide the SSL certificate and optional Bundle codes to his client.

About SSL

SSLSSL and Secure Certificates provide security for your website by encrypting communications between the server and the person visiting the website. It is required to be used on e-commerce sites when accepting credit card payments online.

HostGator Business and Enterprise hosting plans include a Comodo Private SSL Certificate. Several types of SSL Certificates are also available for purchase separately from HostGator and can be added to most hosting plans.