This digital certificate with serial number 14:7b:a9:23:f4:af:e7:13 was issued on
by National Institute of Informatics.
This certificate has already expired and will cause a warning or error message in the browser it's
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We have idenified some issues with this certificate:
Organization:Niigata University Organization unit: Center for Academic Information Service
National Institute of Informatics
Organization:National Institute of Informatics Organization unit: UPKI
Organization unit: NII Open Domain CA - G2
Time since certificate expired
This certificate has expire since
Serial Number (hex): 14:7b:a9:23:f4:af:e7:13
Serial Number (int): 1475959274788087571
Serial Number lenght: 61 bits, 8 octets