Lead

Keyword is a bit of a misnomer, because it can refer to a word or entire phrase that appears in web searches. 

However, in either case, it refers to a word or phrase representing a specific search term and idea. Websites will build strategies to rank for particular keywords that are closely related to their products or services, in order to generate more traffic and leads.

A calculation of the cost for an ad or marketing campaign, compared to the amount of trackable revenue it provided for the company. ROI is an important metric for many campaigns, because it relates directly to the profitability of an ad or project.

Sometimes revenue can’t be tracked precisely and attributed to an ad or campaign, though many digital ads are now able to provide this granular tracking to aid in business decisions.

A semantic HTML tag that denotes a webpage’s main subject. This is sometimes referred to as the page’s title, but in coding terminology, is different from the Title tag, which is the title that will appear on a browser tab. An H1 subject will only appear on the page itself.