{"endpoint":"/api/indexnow/submit-sitemap","method":"POST","body":{"sitemapUrl":"optional, defaults to /sitemap.xml on current host","batchSize":"optional, default 500, max 10000","dryRun":"optional boolean to validate and count URLs without submitting"},"auth":"Set INDEXNOW_MANUAL_TOKEN and send it as x-indexnow-token header (or ?token=...) to protect this endpoint."}