1. The Mathematics of eCPM: Calculation Mechanics, Fill Rate Variance, and Floor Pricing
Mathematical breakdown of Effective Cost Per Mille, how unfilled ad requests distort headline rates, and how to find the revenue-maximizing price floor.
Quantitative analysis of programmatic auctions, SDK mediation stacks, international payout rails, and policy compliance.
Mathematical breakdown of Effective Cost Per Mille, how unfilled ad requests distort headline rates, and how to find the revenue-maximizing price floor.
Head-to-head comparison of Google AdMob and AppLovin MAX covering binary size, auction timeout tolerances, DV360 brand demand vs gaming CPI demand, and payout terms.
Quantitative analysis of session length decay, cooldown timers, opt-in engagement loops, and server-side verification (SSV) for rewarded callbacks.
Day-by-day ledger of Google's monthly payment timeline, invalid traffic deductions on the 2nd of the month, $100 thresholds, and postal PIN verification rules.
Fee audit comparing Wise mid-market USD routing, Payoneer receiving accounts, and traditional SWIFT wire transfers for non-US developers receiving USD ad payouts.
Country-level eCPM clearing tables across 18 countries and 4 ad formats, including Q4 seasonality multipliers and iOS vs Android spreads.
Why hybrid mediation setups combining real-time OpenRTB bidders with strategic waterfall floor instances outperform pure waterfalls by 15–25%.
Step-by-step IAB Tech Lab implementation guide for DIRECT vs RESELLER declarations, store developer URL crawling, and troubleshooting unverified status.
Engineering remediation protocol when Google restricts ad delivery due to accidental clicks, newly launched UA campaigns, or unconfigured test hardware.
Measuring the exact eCPM differential between IDFA-consented iOS traffic and zeroed-IDFA traffic, plus pre-prompt timing strategies.
Technical evaluation of the two dominant mobile gaming mediation platforms across Unity Editor integration, ANR crash rates, and ROAS campaign loops.
How refresh timers (30s vs 60s vs 120s) interact with IAB Active View requirements and how DSP algorithms penalize low-viewability banner slots.
Player segmentation rules, dynamic ad suppression for paying cohorts, and pricing "Remove Ads" bundles above user ad LTV.
How non-US developers legally eliminate the 30% IRS Chapter 3 backup withholding on US ad impressions using bilateral tax treaty articles.
Definitive engineering answers to the 12 most common publisher questions: reporting discrepancies between mediation and ad networks, gross vs net rev-share cuts, and cold-start caching.