Landing Experience Checker Preflights the destination page against the ads before launch — ad↔page message-match continuity, above-the-fold offer/CTA presence, page-load speed, form-field friction, and mobile rendering — and returns a pass/fix punch list. This works the ROAS O (Offer) lever from the post-click side: it is the Quality-Score / landing-page-experience relevance check that stands between finished creative and a go-live decision. It checks only — it does not rewrite or redesign the page (that is ) and it does not compute the RQS or run vetoes (that is ). Quick Start Skill Contract…