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How Internet Search Engines Work

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Inside this Article 1.

Introduction to How Internet Search Engines Work

2.

Web Crawling

3.

Meta Tags

4.

Building the Index

5.

Building a Search

6.

Future Search

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The good news about the Internet and its most visible component, the World Wide Web, is that there are hundreds of millions of pages available, waiting to present information on an amazing variety of topics. The bad news about the Internet is that there are hundreds of millions of pages available, most of them titled according to the whim of their author, almost all of them sitting on servers with cryptic names. When you need to know about a particular subject, how do you know which pages to read? If you're like most people, you visit an Internet search engine.

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Internet search engines are special sites on the Web that are designed to help people find information stored on other sites. There are differences in the ways various search engines work, but they all A top search engine will index perform three basic tasks: hundreds of millions of pages per day. See how to get ● They search the Internet -- or More on Search connected to the Internet. select pieces of the Internet -based on important words. ● Google Quiz ● They keep an index of the words they find, and where they ● How Google Works find them. ● Wolfram Alpha ● They allow users to look for words or combinations of words ● Discovery.com: Is found in that index. technology rewiring our brains?

Early search engines held an index of a few hundred thousand pages and documents, and received maybe one or two thousand inquiries each day. Today, a top search engine will index hundreds of millions of pages, and respond to tens of millions of queries per day. In this article, we'll tell you how these major tasks are performed, and how Internet search engines put the pieces together in order to let you find the information you need on the Web.

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Inside this Article 1.

Introduction to How Internet Search Engines Work

5.

Building a Search

6.

Future Search

2.

Web Crawling

7.

Lots More Information

3.

Meta Tags

8.

See all Internet Basics articles

4.

Building the Index

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