Search Engine Optimization Basic
SEO is more commonly known as Search Engine Optimization although Google abbreviates it as Search Engine Optimizers. SEO is getting more and more important nowadays not only for business purposes but also for the extra website exposure.
With countless of queries executed every second, you will never know when a potential customer just slip by your site! Therefore, optimizing every webpages will at least increase your site's exposure in response to the keywords.
What are Spiders and how do they work?
Also known as crawlers, spiders are Search Engine applications that explore the vast web. They constantly look for new content to analyze and index. Spiders built a list of all other pages referenced by a given page, and eliminate duplicates that exist in the database after double-checking.
So when do the spiders start to visit your site? Googlebot (Google spiders), only visit your site every 90 days. It is believed that if a page changes a lot, Googlebot will visit it more often. Google also tends to visit pages with high Page Rank more frequently than the lower ranked pages.
Now that you have learnt how your site is indexed by the spiders, feel free to move on to the specific topics on SEO such as Content, Design and PR. These topics contain in-depth steps to show how pages are optimized.
SEO guidelines from the major search engines
The following guidelines link to the official release from the respective search engines' regarding their Webmasters guidelines. These guidelines illustrates what is the important factors that they are looking at when indexing and ranking pages.