In California, if you own domains and wish for them to be managed by your trust after your incapacity or death, it is generally recommended that you transfer them to the trust.

There are a few key considerations when transferring domains to a trust. The first is to ensure that the transfer is compliant with the terms of service of the domain registrar. Some registrars have specific requirements for transferring domains to trusts, so it's important to check these before proceeding.

The second is to ensure that the trust document clearly identifies the domains as assets of the trust and provides the trustee with the necessary authority to manage them. The trustee should also be provided with all necessary login credentials and any other information needed to access and manage the domains.

It's also important to note that some domain registrars may not recognize the trust as the legal owner of the domain, and in those cases it may be necessary to register the domain under the trustee's name. It's best to consult with an attorney who specializes in estate planning for further guidance on your specific case.