# Core Utility Modules ## Domain Subscription Module Users may utilize this module to register or extend their ownership over specific domains * Users will pay in $CRO or $CROID and may receive discounts based on the durations of their domain registrations ## Rewards Pool (Coming Soon) Cronos ID domain holders can deposit their $CROID into maturity vaults to earn $CROID rewards * Users can choose between a 1-month, 9-months, 24-months, and 48-months maturity vaults to lock their $CROID --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.cronosid.xyz/core-utility-modules.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.