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AdProof field notes

Evidence for people
who buy media.

Practical answers to the questions hidden inside campaign reports: what ran, where it landed, who it reached, what was invalid, and which number deserves to be believed.

13
Published guides
6
Measurement topics
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Media resold
Featured field guideMeasurement

How to Verify a Digital Ad Campaign Actually Ran

A platform total does not prove every ad rendered correctly. Verify campaign delivery using tags, event logs, viewability, IVT, and reconciliation.

August 15, 202619 min readRead the guide
Campaign evidence chain
04 checks
01
Served
Platform delivery record
evidence
02
Measured
Independent event observed
evidence
03
Qualified
Validity and exposure checked
evidence
04
Reconciled
Difference made explainable
evidence
Request → render → outcomeOpen report →
The complete notebook

All field notes

02Measurement

Ad Impressions vs Reach, Clicks, Views, and Conversions

Confused by ad impressions, reach, clicks, views, and conversions? Learn what each metric counts, what it cannot prove, and which one to use in reports.

Aug 23, 2026 · 16 min readRead →
03Brand Safety

How to Ensure Brand Safety in Digital Ad Campaigns

Use this practical brand-safety workflow to define suitability rules, control inventory, verify placements, measure coverage, and respond to unsafe ad exposure.

Aug 23, 2026 · 20 min readRead →
04Targeting

How to Track Whether Your Ads Reach the Right Audience

Learn how to verify audience targeting with delivery evidence, on-target metrics, first-party outcomes, fraud filtering, and clear limits on inferred data.

Aug 23, 2026 · 18 min readRead →
05Measurement

Google Ads Clicks but Fewer GA4 Sessions? A Fix Guide

Google Ads clicks and GA4 sessions rarely match exactly. Diagnose the gap across clicks, redirects, consent, page loads, tags, attribution, and invalid traffic.

Aug 21, 2026 · 18 min readRead →
06Targeting

How to Track Whether Your Ads Run in the Right Location

Learn how to verify whether ads ran in the right city, state, or country using campaign settings, geo evidence, coverage rates, and mismatch analysis.

Aug 18, 2026 · 17 min readRead →
07CTV & OTT

SSAI and CTV: Why Server-Side Stitching Changes What You Can Verify

Server-side ad insertion powers most premium streaming—but it also moves beacons, manifests, and decisioning off the device. A deep dive into cueing, decisioning, beacon paths, reconciliation, and how to run SSAI inventory without flying blind.

Mar 25, 2026 · 22 min readRead →
08Measurement

ads.txt, sellers.json, and schain: A Field Guide to Supply-Path Transparency

Authorized Digital Sellers, exchange seller files, and the Supply Chain Object each solve a different layer of trust. An in-depth look at how declarations work, how to validate a bid path, red-team failure modes, and operational playbooks for buyers and publishers.

Mar 24, 2026 · 20 min readRead →
09CTV & OTT

Household Identity in Streaming: Measurement Without the Cookie Crutch

A deep dive into identity layers in CTV and OTT: co-viewing, IP and device signals, clean rooms, cross-device deduplication, frequency semantics, privacy guardrails, and how to build measurement contracts that hold up under scrutiny.

Mar 23, 2026 · 23 min readRead →
10Ad Fraud

Understanding IVT: A Comprehensive Guide to Invalid Traffic Detection

Invalid Traffic (IVT) costs the ad industry billions annually. Learn the difference between GIVT and SIVT, how detection works, and what to look for in a verification partner.

Mar 10, 2026 · 8 min readRead →
11CTV & OTT

CTV Measurement Challenges in 2026: What Advertisers Need to Know

Connected TV ad spend is surging, but measurement gaps remain. Here's what makes CTV verification uniquely difficult and how to navigate it.

Mar 5, 2026 · 6 min readRead →
12Measurement

Platform vs. Independent Measurement: Why the Numbers Don't Match

When platform-reported metrics differ from independent verification, which should you trust? We break down the discrepancy gap and what drives it.

Feb 28, 2026 · 5 min readRead →
13Frequency

Cross-Device Frequency Capping: The Hidden Budget Drain

Most advertisers are overexposing households by 2-3× without knowing it. Here's how cross-device frequency intelligence can recover wasted spend.

Feb 20, 2026 · 4 min readRead →
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