Does the CNAME in sandbox need to be different from Prod?

Question

Hi, Setting up new sandbox and prod. Do we need to setup different email/landing page CNAMES in Sandbox and PROD? or can they be the same?

Example:

Sandbox:

For our landing
pages, IT will need to add a DNS Entry (CNAME) for [LandingPageCNAME1].[CompanyDomain].com,
pointing to [AccountString].mktoweb.com.
For our
tracking links in email, need to add add a DNS Entry (CNAME) for [EmailTrackingCNAME1].[CompanyDomain].com,
pointing to [MktoTrackingLink].

Production:

For our landing
pages, IT will need to add a DNS Entry (CNAME) for [LPCNAME2].[CompanyDomain].com,
pointing to [AccountString2].mktoweb.com.
For our
tracking links in email, need to add add a DNS Entry (CNAME) for [ETCNAME2].[CompanyDomain].com,
pointing to [MktoTrackingLink2].

Thanks,

Vibha.

Raul_Cano2 · Accepted Answer

Yes, they do. They are two different CNAMEs that need to point to two different places. One CNAME can't resolve to two subdomains.

SanfordWhiteman · Answer

Certainly they need to be different. How else could you access assets on each one?

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