How does Google find the exact information you need from billions of pages in less than a second? It's like a magical librarian for the entire internet. Let's look at the three main steps it uses.
Story: Search engines use automated programs called "crawlers" or "spiders" to travel the web. They move from link to link, 24/7, to find new and updated pages.
Analogy: Imagine thousands of tireless postal workers constantly traveling every road in Andhra Pradesh, making a note of every house and shop they find. This is what crawlers do for the internet.
Story: After crawling, the search engine saves and organizes all the discovered content in a massive database called an "index."
Analogy: After the postal workers gather all the addresses, a master list is created. This list (the index) is perfectly organized, so you can quickly find all the cloth shops in Guntur or all the farmers in West Godavari.
Story: When you type a search query, the search engine's algorithm instantly searches its index and ranks the results to give you the most relevant and trustworthy answers first.
Analogy: When you ask for the "best mangoes in Vijayawada," the librarian doesn't just give you a random list. It recommends the shops that are most popular, have the best reputation, and are known for quality. Ranking works similarly, using hundreds of factors.
What is the process of a search engine discovering new pages on the internet called?