Search Engine 101

What's a Search Engine? Oohs.

It is a program designed to do basically three things.

For example if you go to Google search and type in the words 'search engine' and hit the enter button. Immediately, the Google Search Engine starts to query its huge database and try to find web pages that matches the search term 'search engine', and ranks them according to relevance. Ranking according to relevance is determined by the Search Engine algorithm (specific requirements). Every Search Engine has its own peculiar algorithm.

Basically there are 2 types of Search Engines, human edited directories and crawler-based Search Engines. The operations of these 2 types of Search Engines are different.

What is a human edited directory?

As the term suggests, a human edited directory depends on humans to review, approve and compile its listings of web pages. The Yahoo Directory is an example of a human edited directory. You submit a short description of your website to the directory. Search results only show matches in the descriptions submitted. Changing your web pages does not have any effect on listing in a directory.

What is a crawler-based Search Engine?

First and foremost, let’s understand what’s a crawler? It is one component of a Search Engine that automatically ‘crawled the web’ to gather listings. The Search Engine ‘crawler’, which is also known as ‘spider’ or ‘robot’ visits a web page, reads it, and follows links to other web pages. It gathers copies of web pages and stores them in the Search Engines index (database). When people type in a search term the Search Engine looks up its database of web pages, and uses its specific algorithm (specific requirements) to determine which pages closely match the search term.

Crawler-based Search Engines, gathers and creates listing automatically. New web pages are automatically crawled and indexed, and changes made to existing web pages are also automatically updated. If you make changes to your web pages, the crawlers will find these changes, which in turn may affect the ranking of your web pages. For a crawler based Search Engine, it is the crawler that does the work of gathering and compiling the listing. Google is one example of the many crawler-based Search Engines.

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Gerrick W provides information and tips to effectively market your Internet business.Visit: http://www.1stinternetmarketingsolution.com

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