Do I need a separate McAfee SECURE trustmark subscription for a subdomain? August 05, 2015 23:45 Follow Whether you need a separate subscription for a subdomain depends on a number of different factors. Please click here to contact our support team to inquire about subdomain subscriptions. Related articles I can’t see my trustmark. What are some common ways to resolve this issue? How do I add a new website? What is the cost of the McAfee SECURE certification? How to Add the Engagement Trustmark to Your Website How do I add Shopper Identity Protection to my site?