Shopping engine search through multiple product feeds to generate results and through this customers have the ability to comparison shop at a faster pace. Shopping engines work on a pay per click basis where advertisers can submit their product feeds. Two well-known shopping engines are Shopzilla and Google Shopping.

A direct hit is a user that visits your website directly without referring another source. For instance, this happens when you visit a website such as www.yournamebadge.com without searching for the site using a search engine.

A 301 redirect means that the url has been moved permanently to another web address. When someone enters the website name into their web browser they are automatically forwarded to another site. This is frequently used with a secondary domain name for a site.

404 Error Page is the web page that is automatically generated when a user request a page that does not exist.