1. A computer implemented method, comprising: receiving a query from a user device; identifying content items that are responsive to the query as unfiltered content items; determining that the query includes a filtering term and in response to the determination: identifying filtered content items based on the query and the filtering term; providing search results for the filtered content items to the user device, each search result referencing a filtered content item; providing the user device access to a verification service that provides access approval or access denial for search results for the unfiltered content items that are responsive to the query, determining whether access approval or access denial is received from the verification service in response to user identification data provided to the verification service; if access approval is received from the verification service, then providing search results for the unfiltered content items to the user device; and if access denial is received from the verification service, then precluding the provisioning of search results for the unfiltered content items to the user device.