A buyer persona is a semi-fictional representation of a brand's ideal customer, created based on market research and data about existing and potential customers. It includes detailed information about their demographics, behaviors, motivations, goals, and pain points. In the context of influencer marketing, a buyer persona helps brands to identify and understand the specific audience they want to reach through their collaborations.

Bounce rate is a website analytics metric that represents the percentage of visitors who enter a website on a particular page but leave without interacting with that page or visiting any other pages on the same site. It is an indicator of how engaging and relevant the content of a webpage is to its visitors. A high bounce rate can suggest that visitors did not find what they were looking for or that the page did not meet their expectations.

A boosted post, also known as a promoted post, in influencer marketing refers to an influencer's social media content that a brand pays to promote to a wider audience beyond the influencer's organic reach. This is a form of paid advertising where the brand takes an existing, often high-performing, organic post from an influencer and allocates a budget to increase its visibility among a targeted demographic.