Findsun Search engines have three primary functions: 1. Crawl: Scour the Internet for content, looking over the code/content for each URL they find. 2. Index: Store and organize the content found during the crawling process. Once a page is in the index, it’s in the running to be displayed as a result to relevant queries. 3. Rank: Provide the pieces of content that will best answer a searcher's query, which means that results are ordered by most relevant to least relevant. . Indexing Indexing is the gathering of contents found during the crawling process. If a search engine indexed a page, and it can appear among the search results for the related queries.. Search engines process and store information they find in an index, a huge database of all the content they’ve discovered and deem good enough to serve up to searchers. Once it has extracted the page content, the crawler will put it on the index of the visited pages and organizes all the information. The information is then used ...