{
 "slug": "google-cws",
 "name": "Google-CWS",
 "operator": "Google",
 "operator_slug": "google",
 "category": "tool",
 "category_label": "Tools and frameworks",
 "robots_token": "Google-CWS",
 "user_agent_substring": "Google-CWS",
 "user_agent_example": "Mozilla/5.0 (compatible; Google-CWS)",
 "respects_robots_txt": "by-design-no",
 "respects_robots_txt_label": "not governed by robots.txt (user-initiated, by operator policy)",
 "verification_method": "published-ranges",
 "verification_label": "published IP ranges",
 "published_ip_ranges_url": "https://developers.google.com/static/search/apis/ipranges/user-triggered-fetchers.json",
 "ip_ranges_endpoint": "https://www.pathwren.workers.dev/ip-ranges/google-user-triggered.json",
 "ipv4_prefix_count": 529,
 "ipv6_prefix_count": 529,
 "what_it_is": "The Chrome Web Store fetcher. It requests the URLs a developer put in the metadata of a Chrome extension or theme. Google publishes fetcher addresses in two files — user-triggered-fetchers.json and user-triggered-fetchers-google.json — and does not say per fetcher which one applies, so verification means checking both; this index mirrors both.",
 "cost_of_blocking": "Chrome Web Store listings that point at your pages cannot fetch them. Relevant only if you publish extensions.",
 "operator_docs": "https://developers.google.com/search/docs/crawling-indexing/google-user-triggered-fetchers",
 "html_url": "https://www.pathwren.workers.dev/crawler/google-cws.html",
 "json_url": "https://www.pathwren.workers.dev/crawler/google-cws.json",
 "last_reviewed": "2026-09-01",
 "links": [
  {
   "rel": "self",
   "href": "https://www.pathwren.workers.dev/crawler/google-cws.json",
   "type": "application/json"
  },
  {
   "rel": "changes",
   "href": "https://www.pathwren.workers.dev/changes.json?since=105",
   "type": "application/json",
   "title": "What changed since your cursor — poll this instead of re-downloading this document",
   "cursor_param": "since",
   "head_cursor": 105,
   "min_poll_seconds": 21600,
   "how": "Read `cursor` from the response and send it back as `since`. It advances only when something really changed, so an unchanged answer is proof rather than luck — about 700 bytes, or a 304 with no body if you send back the ETag."
  },
  {
   "rel": "related",
   "href": "https://www.pathwren.workers.dev/data/agents.json",
   "type": "application/json",
   "title": "Every crawler record in one file"
  },
  {
   "rel": "related",
   "href": "https://www.pathwren.workers.dev/crawler/google-cws.md",
   "type": "text/markdown"
  },
  {
   "rel": "related",
   "href": "https://www.pathwren.workers.dev/ip-ranges/google-user-triggered.json",
   "type": "application/json"
  },
  {
   "rel": "service-desc",
   "href": "https://www.pathwren.workers.dev/openapi.json",
   "type": "application/json",
   "title": "Every read endpoint, described formally"
  }
 ]
}