SEO is a set of techniques for targeting relevant website traffic on search engines. In the same way that conventional retailers jostle for the most prominent positions on the high street, online businesses compete for the top spots in natural or ‘organic’ search engine rankings. The nearer the top of the results page they appear, the more likely they are to attract traffic to their website and the better potential they have to convert ‘hits’ on their website into sales. The practice of optimising a website to help it achieve a higher rank in relevant search engine results is known as Search Engine Optimisation or SEO.