Analyseur SEO On-Page, Audit des Balises Méta et Sémantiques
Analyseur SEO On-Page, Audit des Balises Méta et Sémantiques
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Formule & Méthode de Calcul
Topical Relevance = Keyword Proximity (Title) + Semantic Structure (H1 to H6) + Context (Meta Description)
Search engines construct a document outline based on heading tags. Skipping from an H1 directly to an H4 breaks this outline and degrades the page's accessibility score.
Bonnes Pratiques & Conseils
- Enforce the Single H1 Rule: While HTML5 technically permits multiple H1 tags per page, best practice dictates using exactly one H1 to clearly signal the primary topic of the document to search engine crawlers.
- Optimize Image Alt Text: Search engines cannot visually 'see' images. Always include descriptive `alt` attributes on `<img>` tags to provide context for screen readers and Google Image search indexing.
- Prevent Keyword Cannibalization: Ensure that every page on your domain targets a unique primary keyword in its Title tag. If five pages all use the same title, Google will struggle to determine which one to rank.