https://prbookmark.club/story.php?title=tiered-campaign-verification-checklist-1 Clear campaign guidance for operators who need to separate list, proxy, captcha, engine, account, and verification failures. It covers low-OBL screening, contextual anchor planning, unique-domain limits, current engine testing, and maintenance of verified placements after platform updates. Sun, 20 Sep 2026 17:59:30 UTC en