17. The method of claim 9 , wherein translating the one or more profile data items comprises translating the one or more profile data items in response to determining to present one or more content items to the particular user.
9. A method comprising: receiving, from a computing device of a particular user, data about the particular user; storing the data as one or more profile data items in a user profile of the particular user; identifying the one or more profile data items of the particular user, wherein the one or more profile data items are in a first language; translating (a) the one or more profile data items to produce one or more translated profile data items that are in a second language that is different than the first language or (b) a content item that is in the second language to produce a translated content item that is in the first language; performing a comparison between (c) the one or more translated profile data items and the content item that is in the second language or (d) the one or more profile data items and the translated content item; based on the comparison, determining whether to present at least a portion of the content item or a translated version of the portion of the content item to the particular user; causing the portion of the content item or the translated version of the portion of the content item to be presented to the particular user; wherein the method is performed by one or more computing devices.