URL Metadata API
Extract SEO, Open Graph, Twitter Card, favicon and page metadata from any web page.
The URL Metadata API fetches the target URL with a browser-like User-Agent (following redirects)
and parses the HTML with Cloudflare's streaming HTMLRewriter — no DOM library, so large pages are
never fully buffered into memory. Relative canonical, og:image and favicon URLs are automatically
resolved to absolute URLs against the final (post-redirect) response URL, and non-HTML responses
(PDFs, images, JSON) are detected and returned gracefully instead of producing garbage.
Get a free API key at dash.apicodex.io.
Features:
- Core SEO fields: title, meta description, keywords, canonical, charset and html lang
- Open Graph: every
og:*tag returned as a structured key/value map - Twitter Card: every
twitter:*tag captured - Favicons: rel, href, sizes and type, with an optional
/favicon.icofallback - Absolute URL resolution for canonical, og:image and favicon links
- Built-in SSRF guard that rejects localhost and private-range hosts