In digital marketing MoFu means “Middle of Funnel” and refers to content that draws people deeper into a website by demonstrating its value.
The funnel in question is the marketing funnel and is the journey people take from entering a website to undertaking an action (such as making a purchase).
MoFu or Middle of Funnel in this sense refers to things like webinars, testimonials, or reviews. Basically, any content that helps people make an informed judgement about your site – and which ideally demonstrates your the site knows what it is talking about. The overall goal is to demonstrate the value of your site.