Industry consortium
Schema.org with Google guidance
Schema.org is the cross-search-engine collaboration (Google, Microsoft, Yahoo, Yandex) that defines structured-data vocabularies. Google publishes the operative implementation guidance most site owners follow in practice.
Standards governed by Schema.org / Google
- BreadcrumbList structured data Replaces the URL line in Google results with a clean breadcrumb path. Higher click-through, better mobile UX, and one of the few rich-result types Google still ships.
- FAQ / HowTo structured data Schema is still valid; rich results aren't. Google removed HowTo rich results in late 2023 and restricted FAQ rich results to government / health sites in mid-2023. Mark up if it helps AI search; don't expect SERP enhancements.