How Search Engine Optimization Improves Your Rankings
Google’s search algorithm determines where a website ranks on the SERPs. Searchers type a keyword into the search box and Google’s bots read the contents of websites and index them. These pages are then analyzed using hundreds of ranking factors to determine which one should appear first. For example, if a user types in the word “books”, they will see books that match the search term. This is how the search works and how search engine optimization improves your rankings.
SEO techniques work best when aimed at the dominant search engines in the market. Market share varies, but Google’s share is over 75% worldwide. In 2006, Google held a 85% market share in Germany, and Google had 85-90% of the market in the UK. At the time of writing, there were hundreds of SEO firms operating in the US. In June 2008, Google had a nearly 90% market share in the UK.