If I'm understanding your issue correctly (you have two or more domains on the same IP address), then Server Name Indication (SNI) has worked for a very long ti

If I'm understanding your issue correctly (you have two or more domains on the same IP address), then Server Name Indication (SNI) has worked for a very long time and addresses this for you: https://wiki.apache.org/httpd/NameBasedSSLVHostsWithSNI https://wiki.apache.org/httpd/NameBasedSSLVHostsWithSNI Support is at about 97.9% globally: https://caniuse.com/#search=SNI https://caniuse.com/#search=SNI - Effectively every browser released since 2010 plus IE 7 and 8 on Vista.