Affiliate Marketing Glossary

Affiliate Basics

Affiliate (Publisher): An individual or business that promotes another company’s products or services in exchange for a commission on resulting sales or leads.
Advertiser (Merchant): The company that owns the product/service and pays affiliates commissions for referred conversions.
Affiliate Marketing: A performance-based marketing model where affiliates earn only when their referrals generate measurable results (sales, leads, installs).
Performance Marketing: Umbrella term for any marketing in which partners are paid strictly on completed actions—affiliate marketing is the flagship example.
Affiliate Link: A unique URL containing the affiliate’s ID that tracks clicks and attributes conversions to the referring partner.
Commission: The monetary reward an affiliate receives for driving a successful conversion—usually a % of the sale or flat CPL/CPS.
Conversion: The predefined action that triggers a commission (purchase, lead, free-trial signup, etc.).
Offer: The specific product or promotion an affiliate is advertising—includes payout info, creatives, and terms.
Creatives: Merchant-supplied marketing assets (banners, videos, copy) that affiliates can deploy to promote offers.
Super Affiliate: A top-performing affiliate who consistently drives outsized traffic or revenue—often earning special perks and higher rates.

Tracking Cookie: Small data file dropped on a user’s browser after clicking an affiliate link; stores affiliate ID and timeframe for credit.
Cookie Duration: The length of time a cookie remains valid (e.g., 30 days) during which conversions will be attributed to the affiliate.
Cookie-less Tracking: Server-to-server or fingerprint-based methods that attribute conversions without relying on browser cookies—crucial for a privacy-first web.
Tracking Pixel: Invisible 1 × 1 image or script that fires on the confirmation page, pinging the network that a conversion occurred.
Postback URL: Server-to-server callback that sends conversion data directly between advertiser and network; gold-standard for reliability.
Attribution Model: The rule set determining which touchpoint gets credit—affiliate programs almost always use last-click attribution.

Search Engine Optimization (SEO): Techniques to rank content higher in search results and attract organic traffic to affiliate links.
Content Marketing: Creating valuable articles, videos, or social posts that attract, educate, and convert an audience while embedding affiliate offers.
Anchor Text: The clickable words of a hyperlink; descriptive anchors improve SEO and user clarity.
Landing Page: Focused webpage—often the merchant’s product page—designed to convert traffic arriving via affiliate links.
Mobile-First Strategy: Designing content and UX around mobile users first to maximize conversions on small screens.
Email Funnel: Automated sequence of emails that nurtures subscribers toward an eventual affiliate conversion.
Lead Magnet: Free resource exchanged for an email address, seeding the affiliate’s funnel (e.g., checklist, template, discount).
Influencer Marketing: Leveraging creators with loyal followings to promote affiliate offers via tracked links or coupon codes.
Niche: A tightly defined market segment (e.g., “eco-friendly baby gear”) that affiliates focus on to build authority and relevance.

Affiliate Program: The merchant-run system that supplies tracking, creatives, and commission structure to affiliates.
Affiliate Network: Aggregator platform hosting thousands of affiliate programs and handling tracking, reporting, and payouts.
Affiliate Platform: SaaS software that lets merchants run their own program in-house—often includes S2S tracking and real-time analytics.
Affiliate Manager: Person/team responsible for recruiting affiliates, supplying assets, and policing program compliance.
Sub-Affiliate: An affiliate operating under another affiliate’s umbrella, earning a portion of the master affiliate’s commission.
Two-Tier Program: Structure that pays affiliates for both their own conversions (tier 1) and a smaller override on sales made by affiliates they recruit (tier 2).

Affiliate Agreement: Contract outlining the rules of an affiliate program—commission, promotion methods, payout terms.
Affiliate Disclosure: Required statement informing audiences that links may generate a commission—mandated by regulators like the FTC.
GDPR: EU data-privacy law requiring consent for tracking cookies and transparency in data handling.
Trademark Bidding: Paying for PPC ads on a merchant’s brand keywords—usually banned in program terms.
Cookie Stuffing: Fraudulently placing affiliate cookies without a genuine user click; grounds for immediate ban.
Click Fraud: Artificially inflating click counts via bots or self-clicking to steal commissions or drain ad spend.
Incentivized Traffic: Visitors motivated by cashback, rewards, or gifts; allowed only if explicitly permitted by the merchant.
CAN-SPAM Act: U.S. law regulating commercial email—requires truthful subject lines, clear unsubscribe, and sender address.

Impression: One instance of an ad or affiliate link being shown to a user.
Click-Through Rate (CTR): Percentage of impressions that turn into clicks—clicks ÷ impressions × 100.
Conversion Rate: Percentage of clicks that convert—conversions ÷ clicks × 100.
Cost per Click (CPC): The price paid for each click when buying traffic; also a less-common payout model.
Cost per Mille (CPM): The cost per 1,000 impressions—key metric for display ad buys.
Cost per Action (CPA): Generic term for paying only when a defined action occurs (sale, lead, install).
Cost per Lead (CPL): CPA subtype where the action is generating a qualified lead.
Cost per Sale (CPS): CPA subtype where payment triggers only on completed sales.
Earnings per Click (EPC): Average commission earned per click—total commissions ÷ clicks.
Average Order Value (AOV): Mean dollar value of sales attributed to an affiliate—orders ÷ revenue.
Return on Investment (ROI): Profitability metric: (net profit ÷ cost) × 100; vital when affiliates buy ads.
Lifetime Value (LTV): Total revenue a customer is expected to generate over their relationship—matters for recurring commissions.
Key Performance Indicator (KPI): Any metric deemed critical for measuring success—CTR, CR, EPC, or revenue goals.

Payout: The actual commission payment to the affiliate, or the amount per conversion.
Payment Threshold: Minimum earnings required before funds are released (e.g., $50 threshold).
Payment Terms (Net-30, Net-60): Delay between conversion and payout (30 or 60 days) to allow for returns/fraud checks.
Recurring Commission: Ongoing payout for subscription products—affiliate earns for as long as the customer remains active.
Revenue Share: Percentage of customer spend paid to the affiliate—often lifetime for SaaS or gaming offers.
Performance Bonus: Extra incentive awarded for hitting volume goals or winning promos beyond standard commission.
Chargeback: Reversal of a credited commission due to refunds, cancellations, or fraudulent transactions.