1. A method implemented on a computer having at least one processor, storage, and communication platform for providing localized content with respect to a website, comprising the steps of: receiving a request for localized content, wherein the request includes information related to a user, information related to a referrer site from which the user requests content of the website, and a location on a web page where the localized content of the website is to be displayed; obtaining the user's language preference; retrieving one or more pieces of localized content designated to be displayed at the location on the web page, each of which is associated with at least a language preference condition and a referrer site condition; comparing the user's language preference and the information related to the referrer site against the language preference condition and the referrer site condition associated with each of the one or more pieces of localized content; identifying at least one of the retrieved one or more pieces of localized content based on a result of the comparison; and sending the identified at least one localized content as a response to the received request for localized content.