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A calculation of how much each ad click costs in a given ad campaign. CPC can be affected by the ad itself, or by its competitive environment. If an ad is targeted at a high-volume search term, for example, more companies may be bidding for ads related to that search, thus driving up the price.

Pain points are sources of frustration with potential customers that a company should try to solve through their products or services. Figuring out what your audience’s main pain points are that your brand is in a position to improve can be a gigantic step toward crafting a company’s messaging.

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.