Adobe no longer support wildcard certificates, this is due to security vulnerability which has been identified with wild-card certificate, where certificate for the root domain (wild-card "*") could affect other subdomains in the case of vulnerability. As per security measure, Wild-card certificates are no longer supported for First party Implementation.
Identify and share SAN certificate for active Wild-card setups.
If wildcard setup is in use, then both primary and secondary domains have different secure and non-secure tracking server deployed under s.trackingServer and s.trackingServerSecure, within the deployed implementation code or in DTM property.
Consider a primary and a subdomain using wildcard fpssl setup.
- Primary domain is www.example.com. Tracking server used: secure.example.com and non-secure.example.com.
- Subdomain is www.store.example.com. Tracking server used: secure.store.example.com and non-secure.store.example.com.
Previously, all the tracking servers were covered under wild-card certificate for *.example.com domain.