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Well, the Apache has to serve something when someone accesses it via https://websiteB.com. So it uses the content it has, from websiteA. This is explained in detail in the Apache documentation, here a quote from it: Apache automatically discriminates on the basis of the HTTP Host header supplied by the client whenever the most specific match for an IP ...


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From a technical perspective some reasons to use the non-free options: You may need to support truly ancient SSL/TLS implementations that still require that your domain is in the Common Name of the certificate and which won't support the Subject Alternative Name SSL/TLS extension that allows multiple domain names in a single certificate. You might have ...


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