How Search Engine works

Search engines work by crawling hundreds of billions of pages using their own web crawlers. These web crawlers are commonly referred to as search engine bots or spiders. A search engine navigates the web by downloading web pages and following links on these pages to discover new pages that have been made available.

Search engines allow users to search the internet for content using keywords. ... When a user enters a query into a search engine, a search engine results page (SERP) is returned, ranking the found pages in order of their relevance.