Use when doing QA of public websites, in two modes. Build mode - acceptance criteria before shipping a page or redesign. Audit mode - task-, state- and journey-based review of an existing site (marketing, portfolio/studio, service, SaaS, ecommerce, content) that separates reproduced failures, risks still to test and design preferences, with WCAG 2.2 AA, forms/error states, perceived performance, mobile/desktop parity, SEO effects of content changes, and evidence/coverage reporting. Use for any request (ES or EN) to QA, audit or pre-launch-check a website's UX, accessibility or forms, e.g. "auditoría UX" / "QA this site".