Customer Acquisition Cost (CAC) is the cost a business incurs to acquire a new customer. This includes the fully loaded costs associated with sales and marketing to attract a potential customer and to convince them to purchase, divided across all new customers.

The Lead Conversion Rate is the percentage of visitors who come to your website and are captured as leads. This is one of the most important top-of-the-funnel conversion metrics. It’s an indicator of your ability to attract the right target audience and the efficiency at which your website is turns them into leads.

A Marketing Qualified Lead (MQL) is a universal metric used by marketing teams to measure the quality of leads they generate and pass to sales. Most marketing teams have targets associated with MQLs that include number of MQLs and acceptance rate, for example, leads that go on to become Sales Accepted Leads.

The Return On Marketing Investment (ROMI) metric measures how much revenue a marketing campaign is generating compared to the cost of running that campaign. Effective marketers are driven to connect their time, energy and advertising spend with results that contribute to company growth. This KPI answers the question, “are we recouping the time and money we spent developing and executing our marketing campaigns?”

A Session, sometimes called a Visit, is the set of interactions, or web requests, made within a given time frame by a single user visiting a specific website. A single Session often contains multiple activities, such as page views, events, or transactions. In web analytics, a session is either capped by exiting the website or by a period of user inactivity.