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Updated 09 May 2019 by Max

How surveys Review

Learn how Google discovers, crawls, and serves web pages

When you sit down at your computer and do a Google search, you’re almost instantly presented with a list of results from all over the web. How does Google find web pages matching your query, and determine the order of search results?

In the simplest terms, you could think of searching the web as looking in a very large book with an impressive index telling you exactly where everything is located. When you perform a Google search, our programs check our index to determine the most relevant search results to be returned (“served”) to you.

The three key processes in delivering search results to you are:

  • Crawling: Does Google know about your site? Can we find it?
  • Indexing: Can Google index your site?
  • Serving: Does the site have good and useful content that is relevant to the user’s search?

How Google Crawls a Web Page