How to build a search engine from scratch? What’s the best technology stack for this - Quora

Answer (1 of 17): The core of a search engine is a reverse index. So, let's imagine the web as a a hypothetical database. You can think of the web as a 2 column table: URL and page contents. URL contains the URL of a page, and page contents contains it's contents. URL is the primary key. You t...