When you search something on Google.com, Google looks the index of its database engine for the words you searched and gives you back the result based on the terms of their Spider Software that crawls all the sites periodically. The spider software crawls websites periodically and indexes them based on keywords. It matches the url, title, meta tag and page content and index the site with matching keyword. The spider explores the sites and follows the links from page to page and site to site until it gets very big junk of the web.
After your page is index on Google.com, than it ranks based on external factors such as link quality, page rank, speed, content match, and crawler experience.
Visit How to get your website show on first page of Google search engine for tips of getting your website rank better on Google search.Publisher: abdirahman isse