Search Engine Results Page (SERP) is the page displayed by a search engine in response to a user's search query. It is the page that shows the list of web pages, images, videos, or other content that the search engine deems to be the most relevant and authoritative for the user's search term or phrase.

The SERP typically displays a combination of organic search results (web pages that are ranked based on their relevance to the search query) and paid advertisements (sponsored listings that appear at the top or bottom of the page). The exact layout and content of the SERP can vary depending on the search engine, the user's location, and the type of search query being performed.

SERPs can include various features such as featured snippets, knowledge panels, maps, images, videos, and more, depending on the nature of the search query. The goal of search engine optimization (SEO) is to optimize a website's content and structure to improve its ranking on SERPs, thereby increasing its visibility and attracting more organic traffic.