Search Engine Optimization (SEO) is the process of ranking web page high on search engines. SEO positioned the web pages in a web search engine’s unpaid results. (“natural”, “organic”, or “earned” results).

In general, if web pages ranks higher on the search results page. These pages will appear more frequently in the search results list. Then Website will receive more visitors from the search engine’s users. These visitors then converts into customers.

Search engines use complex mathematical algorithms. These algorithms guess which websites a user seeks. In this diagram, suppose each bubble represents a website. There are programs called spiders which examines websites are linked to which other sites. The arrows in diagram representing these links.

Websites getting more inbound links, or stronger links, are presumed to be more important and what the user is searching for.

In this example, since website B is the recipient of numerous inbound links, it ranks more highly in a web search. And the links “carry through”, such that website C, even though it only has one inbound link, has an inbound link from a highly popular site (B) while site E does not. Note: Percentages are round values.