ISC has a wide variety of search and registration services you can access online. Many of these online services are free to use, but you will require an ISC Online Services account to access them, as some fees do apply to access certain information (like the Title, Interest Holder information, viewing a plan of survey, etc.) or when submitting a registration to change title ownership, an interest against title or lien against personal property.
Don't have an ISC Online Services account
I have an ISC Online Services account.