How to fix multiple h1 on WordPress.org

Steps for WordPress.org

1. In WordPress admin, navigate to Appearance → Theme File Editor. Always work in a child theme to avoid losing changes on updates.
2. Open the template for the affected page type (single.php, page.php, index.php, archive.php) and search for '<h1'.
3. Ensure only the primary content title — <?php the_title('<h1>', '</h1>'); ?> — uses the H1 tag. Convert all others to <h2> or <h3>.
4. If using Gutenberg (block editor): open the page/post, click any Heading block that is set to H1 but is not the main title, and use the block toolbar to change it to H2 or H3.
5. Install a heading-audit plugin or use the 'Headings Map' browser extension to scan all flagged pages after saving.
6. Use an SEO plugin (Rank Math or Yoast SEO) to get a per-post H1 check under the 'SEO Analysis' tab in the post editor.

What is multiple h1?

An H1 is the main heading on a webpage — think of it as the title of a book chapter. It tells both visitors and search engines what the page is fundamentally about. HTML allows you to put as many H1 tags on a page as you like, but best practice — and Google's own guidance — is to use exactly one H1 per page. When a page has dozens or even hundreds of H1 tags (which can happen when a theme or plugin wraps every product card, section, or widget in an H1), the heading structure breaks down entirely. Everything below the H1 should be organized with H2, H3, and so on — like chapters and subheadings in a document.

Google uses heading structure — especially the H1 — as a strong signal for understanding what a page is about and for generating the blue title link shown in search results. A page with 95 H1 tags sends contradictory signals: Google cannot determine which heading represents the page's true topic, which can dilute your keyword relevance and hurt rankings. Beyond SEO, screen readers used by visually impaired shoppers rely on a single H1 to orient users when they land on a page — multiple H1s create a confusing and legally risky accessibility experience (WCAG 2.x guidelines and laws like the ADA reference proper heading structure). Fixing this is typically a quick template or theme change, yet it can meaningfully improve both your organic search visibility and the accessibility of your store.

See the complete Multiple h1 guide for every platform and the full background.