Glossary · Ecosystem

What Is an Ad Network? Definition, How It Works and Types

An ad network is a company that aggregates advertising inventory from many publishers and sells it to advertisers through one platform, taking care of targeting, delivery, moderation, billing and publisher payouts. Networks differ by the formats they carry, the verticals they accept and the regions they cover.

Definition

Before ad networks, an advertiser who wanted to appear on a hundred websites signed a hundred insertion orders. A network signs the hundred publishers once, tags their pages, and offers the combined inventory to advertisers through a single account: one deposit, one set of targeting controls, one report. The publisher gets one contract and one payout instead of a hundred, and the network keeps the difference between what the advertiser pays and what the publisher receives.

How an ad network works

  1. Supply. Publishers apply, are moderated, and place the network's tag or SDK on their pages or apps.
  2. Demand. Advertisers open an account, deposit funds, and create campaigns with targeting and a bid.
  3. Matching. On every impression the network's ad server runs an auction among the campaigns whose targeting fits and serves the winner.
  4. Tracking. Clicks carry a click ID; conversions come back by postback so the advertiser can judge each source.
  5. Settlement. The advertiser's balance is charged per impression or click; publishers are paid their share on a schedule.

Types of ad network

TypeWhat it carriesExamples of buyers
Format-specialistPop, push, native or video inventory across many sitesAffiliates, performance teams
VerticalInventory and demand in one industry, for example iGaming or financeOperators, lead buyers
Premium or brandHand-picked publishers, direct deals, brand-safety guaranteesAgencies, brands
Mobile and in-appSDK inventory inside appsApp developers

Reacheffect is a format-specialist network built around pop and push, with native, banner, interstitial, video, domain redirect and Telegram Mini App inventory added to the same account.

Ad network vs ad exchange vs DSP

An ad network owns the publisher relationships and sells its inventory itself. An ad exchange is a neutral marketplace where many networks and publishers sell to many buyers by real-time bidding. A demand-side platform (DSP) is the buyer's tool for bidding on exchanges. Most networks, Reacheffect included, also connect to exchanges and DSPs over RTB to fill inventory their own advertisers do not take.

TermRelationWhere defined
Ad exchangeNeutral marketplace alternativeTerm page
Ad serverThe network's delivery engineTerm page
Traffic sourceA publisher placement inside a networkTerm page
Self-serve advertisingHow most network accounts are runTerm page

FAQ

How does an ad network make money?

From the spread between what advertisers pay per impression or click and the share paid to publishers, after fraud filtering and moderation costs.

What is the difference between an ad network and an affiliate network?

An ad network sells traffic; an affiliate network sells offers and pays per conversion. Many media buyers use both: they buy traffic from the first and send it to offers from the second.

How do I choose an ad network?

By the format and GEOs you need, the minimum deposit, the transparency of source-level reporting, and whether it supports your tracker's postback. Test with a small deposit before scaling.

Put the term to work

Nine ad formats, 195+ GEOs and source-level targeting in one self-serve account, or a managed campaign with a dedicated manager.