1. A method comprising: receiving a request from a source to access content of a target domain, the request being addressed to a domain address of the target domain; identifying a new content domain that is determined to be relevant to the request based on a combination of the domain address of the target domain and historical relevance data associated with the target domain, the historical relevance data including one or more context factors collected from at least one previous request to the target domain; providing access to content of the identified new content domain, responsive to the request.