HOW SEARCH ENGINES WORK & MORE

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Major Search Engines & Directories

There are literally thousands of online search tools available worldwide, but most of these are very small and little used.

We've compiled a list of all the major Search Engines and Directories so you can see which ones are most important.

Why Search Engines are Important

Search Engines are the Internet's most popular type of Web site and Internet users will quite often adopt a Search Engine as their home page.

A survey by Forrester Research suggests that 81% of Internet users find Web sites by carrying out key word searches on the major search engines. Following Links was the next most popular method at 59%.

Research by SRI indicates that 57% of Internet users search the Web every day and 46% of those searches are for product information or services.

When users search the Web using key words the Search Engines will produce a list of ordered results. This list can feature a number of Web sites ranging from just a handful to many thousands.

The results of search engine searches are listed in order of relevancy and usually contain 10 Web sites on each page. 96% of search engine users will only visit sites listed on the first three pages of results.

How Search Engines Work

In response to a search request, Search Engines provide a list of results, placed in order of relevancy to the search term used. Each page of results usually contains 10 Web pages.

The ranking your Web site achieves within these results is dependent on the specific algorithms used by the Search Engine to determine its relevancy to the search term.

Search Engines use software agents, known as 'robots' or 'spiders' to gather text from your site for 'indexing' in their database. The action of these agents visiting your site and following links between pages is known as 'spidering'.

Search Engines only 'index' text content, including page titles, meta keywords, meta descriptions and alternative image text.

This can then be analysed for the frequency, relevance and prominence of specific words and phrases in relation to user searches and compared to that of other sites.

Search Engines also use 'link popularity' within their algorithms to help assess the relevancy of your content. 'Link Popularity' refers to the number of relevant links your site receives from third-parties.

How quickly Search Engines Index

Search Engines receive thousands of registration requests every day and have to work hard to maintain the integrity and relevance of their data.

As a result, the delay between submitting a registration and the site or page actually being indexed can range from a few days to many months.

Information taken directly from Scotti Internet Marketing -

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