I'm getting a different cert at least. No cert errors.
Both certs have same common name, etc. But that's where the similarities end.
This is the cert I'm getting:
Serial number: 4254239493315191306
Validity: Tuesday, 20 February 2018 - Tuesday, 15 May 2018
Public key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
Signature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
Perhaps Google uses multiple certs with same Common Name on different servers. If so, I wonder if there's some security benefit.
Or what could the reason for that be?