Certificates such as Symantec Level 3 security server CA G4, root agent and 360OV server CAG2 all have invalid digital signatures;
It's no use downloading the certificate. SSL digital certificate needs enterprise authentication, and personal version does not need authentication. You need to submit the enterprise information purchase certificate to realize https encryption. Symantec Level 3 Security Server CA G4 and Symantec Enterprise Certificate have agents.
Shenzhen Trust