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Glossary

The affiliate words nobody explains clearly.

Every acronym, tracking term, and funnel-page name an affiliate needs to know — defined in plain English with real examples. No gatekeeping, no marketing fluff.

Commissions & Metrics

How affiliates get paid and measure performance

Metric

EPC — Earnings Per Click

The average revenue you earn per click sent to an offer. The single most important number for comparing offers.

Definition

Commission Model

CPA — Cost Per Action

A flat payout for a specific completed action — a sale, signup, install, or form submission. The dominant model in lead gen.

Definition

Commission Model

CPL — Cost Per Lead

A payout triggered by a qualified lead — typically an email submission, quiz completion, or form fill.

Definition

Commission Model

RevShare — Revenue Share

A percentage of revenue a customer generates, often recurring. The model behind most SaaS and subscription affiliate programs.

Definition

Metric

ROAS — Return on Ad Spend

Revenue divided by ad spend. The single number paid affiliates use to decide whether a campaign is paying for itself.

Definition

Metric

Conversion Rate

Conversions divided by visits, expressed as a percentage. The lever that turns the same traffic into 2× or 5× the revenue.

Definition

Metric

CTR — Click-Through Rate

Clicks divided by impressions. The gatekeeper metric that decides whether the algorithm keeps showing your ads, posts, or listings.

Definition

Metric

AOV — Average Order Value

Total revenue divided by orders. The underrated lever that decides how much an affiliate can pay for traffic and still profit.

Definition

Metric

LTV — Customer Lifetime Value

Total revenue a customer generates over their relationship with a business. Underwrites every RevShare commission you'll ever earn.

Definition

Tracking & Attribution

How conversions get credited to the right affiliate

Tracking

Affiliate Link

A unique tracked URL that tells the advertiser which affiliate sent the visitor. The building block of every affiliate program.

Definition

Tracking

Postback URL

A server-to-server callback that fires the moment a conversion happens — more reliable than pixel-based tracking.

Definition

Tracking

S2S Tracking — Server-to-Server

Cookieless tracking that bypasses browser privacy restrictions. The standard in paid media and post-iOS 14 attribution.

Definition

Attribution

Cookie Window

The window of time an affiliate will still get credit after a click. The difference between Amazon's 24 hours and SaaS programs' 90+ days.

Definition

Tracking

UTM Parameters

Query-string tags appended to URLs that tell analytics tools where a click came from. The cheapest, most universal campaign-tracking method.

Definition

Tracking

Deep Link

An affiliate URL that lands the user on a specific product page rather than the homepage. Converts 30–80% better on product-specific content.

Definition

Tracking

Affiliate Cloaking

Hiding the raw affiliate URL behind a branded redirect on your own domain. Cleaner clicks, link-rot protection, and one-place destination swaps.

Definition

Tracking

Tracking Pixel

A 1x1 invisible image (or JS snippet) that fires on page load to record an event. The legacy mechanism behind Meta Pixel, TikTok Pixel, and most ad-platform tracking.

Definition

Tracking

First-Party Data

Information you collect directly from your users on your own properties. The replacement for restricted third-party data post-iOS-14 and cookie deprecation.

Definition

Tracking

Last-Click Attribution

The default attribution model in affiliate marketing — 100% credit to the final touchpoint. What it gets right, what it systematically misses.

Definition

Tracking

View-Through Conversion

Conversions credited to an ad the user saw but didn't click. Reported by most display platforms and famously over-counted — discount accordingly.

Definition

Tracking

Click ID

gclid, fbclid, msclkid, ttclid — the persistent identifiers ad platforms append to URLs so they can attribute conversions in the post-cookie world.

Definition

Pages & Funnels

The page types that sit between your traffic and your offer

GEO & AI Visibility

Getting cited by ChatGPT, Perplexity, and Google AI Overview

Programs & Networks

How affiliate programs are structured and where to sign up

Go deeper

These terms come up constantly in our playbooks.

Once the vocabulary clicks, the strategy does too. Every glossary page links to the playbooks and courses where that term is put to work.