A SERP is the page displayed by a search engine in response to a user's query. It contains a list of results that the search engine deems relevant to the entered search term or phrase. These results typically include a mix of organic listings (websites that rank due to their relevance to the search term, as determined by the search engine's algorithm) and paid advertisements. In addition to traditional website page results, SERPs can also feature a variety of other result types, such as rich snippets, knowledge graphs, images, videos, local business listings, and more, depending on the nature of the query. The layout, types of results, and order can vary based on the search engine, the user's geographical location, search history, and other factors.