Question 1

Is popunder dead? Industry blogs keep calling it intrusive.

Accepted Answer

Popunder is unloved by people writing about ad tech and over-performing for people running it. Conversion data from 2016-2024 says it converts at rates display can't match on impulse-friction offers — deposit-bonus iGaming, sweeps, utility installs. The intrusiveness is the conversion mechanic, not a flaw. It's the wrong format for considered-purchase offers. It's the right format for the verticals it's the right format for.

Question 2

Why is adsy.tech's $0.50 CPM minimum so much lower than PropellerAds or Adsterra?

Accepted Answer

Most networks pad the rate card so they can offer big-advertiser discounts that land you at the real price. Adsy.tech doesn't pad. The $0.50 floor is the floor, not a sticker price waiting to be negotiated. That's an operational decision, not a sales gimmick — and it's the reason small advertisers can actually test on this format without a $5K commit.

Question 3

How does Adsterra compare for tier-2 popunder volume?

Accepted Answer

Adsterra runs about 30% cheaper than PropellerAds on tier-2 popunder, based on parallel buys I ran in Q3 2023. PropellerAds is stronger on tier-1 push and self-serve. Different specializations, both legitimate. Buying from the wrong one because 'they're both ad networks' is a beginner mistake.

Question 4

Why is the CPM in the panel never the CPM I pay on conversion?

Accepted Answer

Because the panel often shows your bid (the ceiling), not the auction-clearing price (the actual). The gap is typically 15-40% on popunder, depending on GEO and how aggressive the auction is. Some networks show the ceiling, some show the clearing price. When you compare networks, ask which one their panel is showing. The answer separates the operators from the marketers.

Question 5

Is server-side conversion validation actually necessary, or is the client-side pixel fine?

Accepted Answer

Non-negotiable for any vertical with payout latency — iGaming, finance, anything that takes a deposit or a lead. Client-side pixels can be spoofed in a browser session. Server-side calls can be spoofed too, but it's much harder and much rarer. Fewer than 40% of affiliates run server-side validation in 2024. The other 60% are optimizing to fake conversions and don't know it.

Question 6

Which trackers integrate with the postbacks here?

Accepted Answer

Voluum, Bemob, RedTrack, Keitaro, BeMob, AdsBridge, AppsFlyer, Adjust — the postback templates ship with the token mapping pre-wired. REST API for anything custom. Voluum holds about 50% of the popunder/push affiliate market in my observation; the others are within reach.

Question 7

Sweepstakes converts great in week one. Why do you say it's a trap?

Accepted Answer

Because sweepstakes audiences fatigue at roughly -3% CTR per week, and the offer-to-payout latency hides the dying performance for 4-6 weeks. In 2020 I worked on a sweeps offer that ran for 14 months on a 'still profitable on day 1' ROAS dashboard. The day-90 LTV was net-negative. Short-term ROAS lies about long-term LTV — running an audience-fatigue model isn't optional on sweeps, it's the difference between a profitable campaign and a slow bleed.

Question 8

What's the minimum to test, and how should I split the budget?

Accepted Answer

Advertiser minimum deposit is $100. For a CPA test, plan on $100 to pull a directional read. For CPM/CPC, $25/day for at least 14 days — the first three days of data is unreliable, sample size is too small, the publisher rotation hasn't stabilized, fraud filters haven't trained on your offer. Decisions on week-two numbers, not day-one.

Feature	Popunder Network (adsy.tech)	Adsterra / PropellerAds / RichAds
Anti-fraud	Multi-layer + ML scoring	Basic filtering
Reporting	Real-time, drill-down	Delayed, aggregated
Payout cycle	Net-7 / Net-14	Net-30+
Ad formats	6 formats with variants	Limited subset
GEO coverage	240+	Tier-1 only
Targeting	GEO, OS, browser, device, carrier, ISP, time	GEO + device
Self-serve setup	Live in minutes	Manual approval
Account manager	Included from day 1	Paid tier only
Postback / S2S	Native, token-mapped	Limited or paid

Popunder is unloved, under-rated, and pays the bills.

Two sides of the auction, one set of operational rules

Buy popunder at the auction-clearing price

Monetize the tab the user closes

Six high-converting formats

Popunder

In-Page Push

Native Banners

Display Banners

Interstitials

Video (VAST)

Six things most popunder networks still get wrong

Perimeter anti-fraud, not post-billing dispute

Real-time reporting with drill, not daily roll-ups

20+ targeting parameters, combinable

Smart CPM and CPA Goal that don't blow the budget

AM access from day one, not at $10K spend

REST API + S2S postbacks with token mapping

Performs across every vertical

10 ways to fund and get paid

Four steps. No friction.

Sign up

Set up

Launch & target

Scale

Real results, real partners

$33K in 90 days from cold start

+62% eCPM after switching networks

4.2x conversion rate on push

Works with every tracker you already use

Latest from the blog

Popunder eCPM Benchmarks by GEO and Vertical (2026 Reference)

Popunder vs In-Page Push (2026): When Each Format Actually Wins

How to Buy Popunder Traffic in 2026: A Step-by-Step Buying Guide

Guides by vertical & market

Best popunder networks for iGaming

Popunder networks for crypto affiliates

Best popunder networks for sweepstakes

Best popunder networks — Dubai

Best popunder networks — Los Angeles

Best popunder networks — Singapore

Best popunder networks — New York

Best popunder networks — Chicago

Best popunder networks — Miami

Best popunder ad networks in 2026

Case studies

Adsy.tech vs the networks my clients used to run

Questions I got every week as an AM