A method and system for managing credibility of a set of search results for a search query is disclosed. The method can include determining, by a natural language processing technique configured to analyze a portion of the set of search results and a portion of the search query, a credibility factor configured to indicate similarity to a subject matter of the search query. The method can also include establishing a relevance relationship between the credibility factor and source information of a first search result of the set of search results, wherein the source information is based on the credibility factor. The method may also include computing a credibility score for the first search result of the set of search results based on the relevance relationship between the credibility factor and the source information of the set of search results.