Heat Map

A Viewport is the visible area of a webpage. The viewport for a mobile device will be smaller than a desktop screen, and there is considerable variance within device types as well.

Websites need to be responsive to account for differing viewport sizes to avoid massive visual errors and user frustration, which is why responsive web design is so important.

Lifetime Value (LTV) is a calculation of how much a new customer will be worth to your company over their entire lifetime.

This calculation can alter other calculations, such as the acceptable cost of acquiring a new customer. The initial value of that customer may be too low to justify a particular cost, but their LTV could justify the advertising cost to acquire them.

A backlink is linked text on a website that sends the user to another website. You’ll often see sources cited in articles via backlinks to another source.

Backlinks are extremely important for website authority, because you are aligning yourself with related websites and sources within your industry. It’s just as important to work toward obtaining links from other sites to yours, which signals to search engines that your website is useful and trustworthy. Many strategies exist for maximizing a site’s backlink profile.