AdSense to AdX: My MCM Test at Day 0

Day 0 publisher diary The invite is accepted, but AdX serving has not started. Photos are illustrative. Photo: Kaboompics / Pexels 1 / 10

A ChatGPT lead was only a lead

Discovery I checked Google's MCM. Then I reviewed the company, terms and outside comments before any ad-code change. Photo: Kaboompics / Pexels 2 / 10

Manage Account is accepted

Verified in GAM Child AdX is enabled. Billing is excluded from parent access. Photo: Kaboompics / Pexels 3 / 10

ads.txt authorizes a seller

What ads.txt means Seller authorized. No code installed. My AdSense line remains beside the new line. Photo: Kaboompics / Pexels 4 / 10

AdSense is still serving

Current runtime Day 0 still uses AdSense. No LKZ code or new Google Publisher Tag is installed. Photo: Kaboompics / Pexels 5 / 10

What LKZ said it could add

Company claims LKZ said AdX could help. It named refresh and header bidding too. These are claims, not measured results. Photo: Kaboompics / Pexels 6 / 10

One key answer is still missing

Still unanswered Will GPT replace AdSense? Which ad slots remain? How does rollback work? Photo: Kaboompics / Pexels 7 / 10

Judge net revenue, not gross

Hypothetical math With a hypothetical 10% share, gross revenue must rise about 11.1% just to keep net revenue level. Photo: Kaboompics / Pexels 8 / 10

My test uses fixed checkpoints

Measurement plan Day 7: tech check. Day 14: direction. Day 30: first serious net and UX decision. Photo: Kaboompics / Pexels 9 / 10

Follow every dated update

This story continues Read the diary. Have MCM experience? Share it while I document replies, setup and results. Photo: Kaboompics / Pexels 10 / 10 Read the live diary