Based on the search results, a SERP (Search Engine Results Page) is a webpage that is displayed by a search engine, such as Google, in response to a users search query. A SERP checker is a tool that allows you to check the ranking of your website or specific keywords on a search engine results page. These tools can provide information on the position of your website or keywords in the search results, as well as other data such as search volume, competition, and historical rankings. Some SERP checkers offer additional features such as automatic daily updates, customized reports, and the ability to track rankings in multiple countries.