Marketing Frequency 
What is Marketing Frequency? Frequency is the number of occurrences of a repeating event per unit of time. In terms of digital marketing, frequency is how often a task is performed. 
For example
 - The frequency of a blog post
 - The frequency of Twitter, Instagram, Facebook update
 - how often a purchase is made
 - how often you upload videos on YouTube
 - how often you upload a podcast episode
 - You get the idea.