SEO & Search Generative Experience (SGE)
Semantic HTML and Schema Markup
Semantic HTML tells browsers and crawlers what each part of a page means, and schema markup adds machine-readable facts about entities, products, and content. Together they reduce ambiguity and earn rich results. The gain is clarity: a crawler that understands your structure can index and display it correctly.
Points clés
- Use heading tags in order and one H1 per page.
- Prefer semantic elements like article, nav, main, and aside over generic divs.
- Add descriptive alt text and meaningful link text.
- Implement schema for articles, organizations, products, and FAQs.
- Validate markup with the Rich Results Test before shipping.
- Keep schema consistent with visible page content.
- Use breadcrumbs and site navigation schema for large sites.
- Avoid schema spam; only mark up what the page actually contains.
Questions fréquentes
Does schema markup boost rankings?
Not directly, but it can earn rich results and improve click-through rate.
Which schema types matter most?
Article, Organization, Product, FAQ, and Breadcrumb are the common high-value ones.
Can I add schema with a plugin?
Yes, but review the output for accuracy and bloat.
How do I test schema?
Use Google's Rich Results Test and the Schema Markup Validator.
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