Traffic arbitrage glossary

Traffic arbitrage: Buying advertising traffic on one platform and monetising it on another for more than it cost, capturing the price difference.
Lead arbitrage: The lead-focused form of traffic arbitrage: converting paid traffic into qualified leads and selling them to advertisers at a profit.
CPA lead: A user record delivered to an advertiser under a cost-per-action model, billed only when the user completes a defined action.
FTD (first-time deposit): A lead's first funding of their account with the advertiser — the billable event for most financial and crypto offers.
Postback (S2S): A server-to-server HTTP callback that reports a conversion and its payout back to the traffic source, without a browser pixel.
Blind Routing: A bidirectional privacy control that hides the advertiser from the traffic source and the traffic source from the advertiser.
Device fingerprint: A stable identifier derived from a device's browser and hardware attributes, used to detect bots, emulators and repeat fraud without a cookie.
HLR lookup: A query to a mobile carrier's Home Location Register confirming whether a phone number is live and which operator serves it.
Cloaking: Serving different content based on the visitor, so moderators and bots see a compliant page while real users reach the offer.
Prelander: An intermediate page between the ad and the offer that pre-qualifies the visitor and runs the antifraud checks before a lead is created.
Lead status (approve / trash / hold): The state a lead holds after delivery — accepted, rejected, or pending reconciliation — which determines whether it is billable.
Cap: A limit on how many leads a recipient will accept in a period, used to respect advertiser quotas and protect quality.
Geo (tiers): The visitor's country, grouped into tiers that broadly track payout and traffic cost — Tier-1 highest, Tier-3 cheapest.
Conversion rate (CR): The share of visitors or clicks that complete the target action, the core efficiency metric of an arbitrage funnel.