{
  "id": "facebookexternalhit",
  "token": "facebookexternalhit",
  "ua": "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)",
  "label": "facebookexternalhit",
  "operator": "Meta",
  "purpose": "assist",
  "respectsRobots": false,
  "docs": "https://developers.facebook.com/docs/sharing/webmasters/web-crawlers/",
  "note": "Fetches shared links for Facebook, Instagram and Messenger previews; may bypass robots.txt for integrity checks.",
  "sites_blocking": 58,
  "sites_allowing": 29994,
  "block_rate": 0.2
}