Google's network quality flags hit by association

Google's network quality flags hit by association
Heard: AdX seats are being quality-scored partly on the company they keep — if your sellers.json links you to intermediaries with bad MFA (made-for-advertising) reputations, your clean inventory inherits a haircut. Guilt by demand-path association.
— Audit every intermediary in your chain for MFA classification
— Drop resellers you can't vouch for, even if they fill
Impact: a dirty neighbor in your path drags your CPMs down. Confidence: rumor.