Heading hierarchy
type: TechArticle
description: Headings describe the sections of a page. They must form a nested outline, never be used for visual styling alone, and never skip levels.
language: en
is part of: Web Specification Studio
author: Web Specification Studio
publisher: Web Specification Studio
license: https://creativecommons.org/licenses/by/4.0/
date modified: 2026-07-01T00:00:00.000Z
citation: HTML Living Standard — Headings and sections
  type: CreativeWork
  publisher: WHATWG
citation: WCAG — Headings and Labels (2.4.6)
  type: CreativeWork
  publisher: W3C
citation: Section Headings — ARIA Authoring Practices
  type: CreativeWork
  publisher: W3C WAI
citation: MDN — Heading elements
  type: CreativeWork
  publisher: MDN

Web Specification Studio
type: WebSite

Web Specification Studio
type: Organization

breadcrumb
type: BreadcrumbList
item list element: Home
  type: ListItem
  position: 1
  item: https://webspecification.com/
item list element: Spec
  type: ListItem
  position: 2
  item: https://webspecification.com/spec/
item list element: SEO
  type: ListItem
  position: 3
  item: https://webspecification.com/spec/seo/
item list element: Heading hierarchy
  type: ListItem
  position: 4
  item: https://webspecification.com/spec/seo/heading-hierarchy/