RapidSSL® (part of the GeoTrust® root) is the trusted Certificate Authority (CA) that will issue the FreeSSL™ certificate for you. This FreeSSL™ has the same 99+% compatibility as a standard RapidSSL®.
The speediest fully-automated SSL issuance system delivers this FreeSSL™ directly to your inbox in a flash. Basically, your administrative rights to the domain associated to your request are validated automatically. Then the validation process takes just a few minutes, with a lag time typically no longer than fifteen (15) minutes.
The online validation process via FreeSSL's Approver Email happens right after you order this SSL certificate. Then, the certificate will be issued immediately after.