Fix the markup on the way out — without touching templates.

The hardest audit findings to ship are the ones buried in templates — a wrong heading level, a missing schema block, a legacy wrapper that breaks semantics.

DOM transforms let you target those with a pattern and a rule set. When a request matches, Site Transformer rewrites the response body before it reaches the browser and the crawler — so the page Google indexes is the page you designed.

What you can rewrite

• Swap or rename tags — turn .post-wrap-legacy into a semantic <article> with the right microdata.
• Repair headings — promote, demote, or de-duplicate h1–h6 so each page has one clean outline.
• Set titles & meta — template titles and descriptions from on-page values like .
• Inject structured data — add ld+json Article, Product, FAQ, or Breadcrumb schema to matched pages.

Targeted by regex

Every rule is scoped to a URL pattern, so a transform applied to ^/guides/.* never touches the checkout. Preview the match set, publish, and roll back instantly if needed.