AlphaSSL is a specialist entry level SSL Provider, focused on delivering and supporting cheap SSL Certificates. AlphaSSL is a result of combining years of experience in the SSL industry with a clear vision on how to best fulfill the growing demand for SSL worldwide with the lowest possible pricing - all for highly trusted, highly supported 256 bit SSL Certificates.
Intermediate Certificates help complete a "Chain of Trust" from your SSL or client certificate to GlobalSign's root certificate.
As an AlphaSSL customer you must install your end entity SSL Certificate (received via e-mail) along with an AlphaSSL intermediate certificate listed below.
Instructions for installing SSL Certificates on various platforms can be found here: SSL Installation