2 hostnames which both resolve to the same IP address - 1 is an A record and 1 is a CNAME -- get 2 different ratings...one is an A and one is an A+. I have tried 'clearing cache' multiple times to no avail. Any suggestions?
Can you please post the differences ssllabs test recognizes? It is hard to speculate without having basic diagnosis.
The same server can have different configurations for different hostnames. For example, Apache HTTPD has the VirtualHost directive.
For example, even if the SSL config is shared between both hostnames, the HTTP response headers could be different. One might have HSTS headers and the other might not.
As j-mailor said, could you please provide more details?
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