AddTrustExternalCARoot -- Root Certificate
InstantSSL Bundle file -- Prior to 19 March 2009
CA Certificate File for Plesk -- Prior to 19 March 2009
UTNAddTrustSGC -- Intermediate #1 -- from 19 March 2009 to 26 May
2010.
ComodoUTNSGCCA (Intermediate #2) -- From 19 March 2009 to 26 May 2010
ComodoHighAssuranceSecureServerCA (Intermediate #3) -- From 19 March
2009 to 26 May 2010.
InstantSSL CA Bundle -- for use for certificates issued after 26 May
2010.
ComodoHigh-AssuranceSecure ServerCA.crt -- for use with certificates
issued after 26 May 2010.
CA Certificate File for Plesk -- for use for certificates issued after
26 May 2010
