| end-user | The end user is the person who ends up using the service or product that has been purchased. E.g when a customer purchases a gift for another person, they only pay for the product or service, but the person they give the gift to is the one who is the end-user. |
| vpn | (Virtual Private Network) A virtual private network adds a layer of security to your connection. Its usually used to encrypt data and hide location. Its useful as you can protect yourself from cybernetic attacks. |
| hidden door | Noun phrase. In Web analytics, a hidden door is a page for which activity is not tracked in the same way as other pages on a Website (if tracked at all). Examples of hidden doors include shopping carts, thank you post-sale pages, and user account management pages. A hidden door breaks the analytics path of the user journey. See also: Time portal, Time tunnel. |
| css | A Cascading Style Sheet (CSS) is the code that makes a website look a certain way (ex: fonts and colors). |
| quality index | Quality Index is like Yahoos version of Googles Adwords Quality Score. It can affect a users cost per click and ranking. |