For technical SEO & metadata indexing: Extracts rich structured metadata from your URL (favicons, title, description, canonical, meta tags, Open Graph, Twitter Card, JSON-LD, redirects, headers, performance, headings, images). Returns everything by default; query params narrow response (pass atomic field names, ex: ?fields=title,description or named groups: network,meta,og,twitter). ?omitEmpty=true trims tokens for AI agents. Obeys robots.txt. Supports GET & POST

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