Diese Url bietet die Möglichkeit, das Zertifikat und sein CSR zu überprüfen:
https://pkiwidgets.quovadisglobal.com/pkiwidgets/matchCertAndCSR.aspx
Match Certificate & CSR
Using this tool, you may confirm whether a digital certificate matches a Certificate Signing Request (CSR). This is useful when you are managing many digital certificates and lose track of which CSR corresponds to a certificate.