Bounce rate
Bounce rate is the share of sessions that viewed exactly one page.
Churn
Churn is the revenue or customers lost when subscriptions end, either because the customer cancels (voluntary) or because payment fails and is not recovered (involuntary).
Cohort analysis
Cohort analysis groups customers by when they started, or by how they arrived, and tracks each group’s behaviour or revenue over the following months.
Conversion rate
Conversion rate is the share of visitors in a period who became paying customers in that period.
Cookieless analytics
Cookieless analytics measures visits without storing an identifier on the visitor’s device, usually by hashing request data with a salt that changes every day.
Customer acquisition cost (CAC)
Customer acquisition cost (CAC) is ad spend divided by new customers, for the same channel and period. A channel with no new customers has no CAC.
Customer lifetime value (LTV)
Customer lifetime value (LTV) is the total net revenue a customer has paid you, averaged across customers.
First-touch attribution
First-touch attribution credits a customer’s revenue to the channel, campaign and landing page of their very first recorded visit.
Gross revenue retention (GRR)
Gross revenue retention (GRR) is the share of a cohort’s starting revenue still paid in a later month, counting downgrades and churn but not upgrades.
Last-touch attribution
Last-touch attribution credits a customer’s revenue to the channel of the final visit before they paid.
Merchant of record (MoR)
A merchant of record is a company that legally sells your product to your customer, collecting payment and handling sales tax, VAT and invoicing, then paying you the rest.
Monthly recurring revenue (MRR)
Monthly recurring revenue (MRR) is the sum, over active non-trial subscriptions, of each period price normalised to a month.
Net revenue retention (NRR)
Net revenue retention (NRR) is the revenue a group of customers pays you in a later month as a percentage of what the same group paid in their first month, including upgrades.
Payback period
Payback period is the number of months a new customer needs to pay you before their net revenue covers what it cost to acquire them.
Processor fees
Processor fees are what a payment processor or merchant of record keeps from each payment before paying you.
Profit per channel
Profit per channel is revenue minus fees minus ad spend, for the payments attributed to one acquisition channel in a period.
Refund rate
Refund rate is refunded revenue as a share of gross revenue charged in the same period.
Return on ad spend (ROAS)
Return on ad spend (ROAS) is revenue divided by ad spend, for the same channel and period. Revenue is charges minus refunds, before processor fees.
Revenue attribution
Revenue attribution links each payment to the marketing channel, campaign or page that brought the paying customer.
UTM parameters
UTM parameters are query string tags such as utm_source, utm_medium and utm_campaign added to links so analytics tools can tell where a visit came from.

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