How do search engines work?
Welcome! I am so excited to help you unpack the magic behind how search engines actually work. Before we dive into the gears under the hood, I'd love to learn a little bit about you so I can make this session as valuable as possible.
To help me tailor this explanation, could you tell me a bit about your background? For example, are you interested in this for general knowledge, or are you looking to learn about SEO to improve a website?
I'm just curious about how the technology works for general knowledge
It is great to have you here! Since you are curious about the underlying technology, we can focus purely on the fascinating engineering that makes searching the web feel so effortless.
Your path
Deep Dive into Crawling
Understanding Indexing
The Ranking Algorithm
The Ultimate Goal of a Search Engine
At its absolute core, a is an online tool designed to help you locate information on the internet. But more specifically, its primary goal is to fetch the most relevant, high-quality results that perfectly match what you are trying to find, and to do it in milliseconds.
To make this happen, a search engine constantly runs three interconnected processes behind the scenes:
- Crawling: Sending out automated software bots to discover new and updated pages across the web.
- Indexing: Organizing and storing all that gathered information in a giant, searchable digital library.
- Ranking: Sifting through the library when you type a query and deciding which pages to show you first.