Adding unique IP to a domain


I would like to know if I add a unique IP to a domain, will this IP address be also used for all the subdomain that are under this domain.

For instance, if I add a unique IP for the domain, does the subdomain will be reachable with the same IP ?


i set up a unique ip on a subdomain (secure.domain.tld) because i want some pages to use ssl. secure.domain.tld (http and https), www.domain.tld, and domain.tld all serve the same content and are working with dns setting all three of them to the unique ip on secure.domain.tld, but i don’t think this is the case for subdomains with different content.

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