Dynamic Number Insertion (DNI) is a technique used in digital advertising to track the effectiveness of marketing campaigns by dynamically changing the phone number displayed on a website or ad based on the visitor's source. This helps businesses measure which campaigns are driving phone calls.
For example, If a customer clicks on an ad for a restaurant on Facebook, the DNI script displays a unique phone number for that campaign. When the customer calls, the system tracks the call back to the Facebook ad, helping the business measure the effectiveness of their Facebook campaign.
