Email Unsubscribes is the count of how many users unsubscribe from your email distributions over a defined time period. It helps your understand the health of your email distribution list and the effectiveness of your email communications.

Emails Bounced is the count of emails that were not successfully delivered. Specifically, it's the count of Non-Delivery Receipts from your recipients' email servers.

Emails Clicked is the number of unique recipients who clicked on any link in your email. Clicks, or Click Through Rate, is often the key measurable result for most email campaigns and a good indicator of the quality of content.

Emails Delivered is the number of contacts who successfully received an email to their inbox and, as such, does not include bounces or unsubscribed recipients.

Emails Opened is the number of unique recipients who opened your email. Because the number of people who open your email impacts every other downstream metric, such as clicks, it makes sense to pay special attention to this one.

Emails Sent is the number of contacts you sent your email to.This metric is generally the broadest list but excludes any previous hard bounces and recipients who unsubscribed. Depending on your email marketing platform, it might also exclude recipients who have shown repetitive low engagement.

Feed Subscribers is the count of the number of people who have indicated they want to receive your content. This metric is essential to bloggers and helps you leverage a blog as part of your marketing initiatives.

Followers is the number of users who have chosen to follow another user’s or company’s posts, such as via Twitter, LinkedIn, Facebook or Instagram. It is a quantitative metric used to gauge how well you are building an audience and community around your brand.

Form Completions is the count of unique submissions of a form displayed on a website. Businesses use forms for multiple purposes, ranging from customer support to product inquiries. Tracking this metric is a good way to gather standardized information from customers or gauge interest in a product or brand.

Form Installs is the count of forms installed on your website. Tracking this number gives you a high-level view of the number of possible form-based interactions with your customers.

Form Interactions is the count of interactions that users have had with your web form. An interaction includes clicks, form entries, clicking a field to fill in information, and form abandonment. By tracking Form Interactions, you can learn where and why users abandon your forms, and how to modify your form to best capture your target audience.

A Form View is the count of user views of a page containing a form. It is different from Form Submissions because the user does not have to submit the form for it to count as a view.