Google · Link preview fetchers · json
User-agent: GoogleMessages Disallow: /
| robots.txt token | GoogleMessages |
| User-agent contains | GoogleMessages |
| Operator | |
| Category | Link preview fetchers |
| robots.txt | not governed by robots.txt (user-initiated, by operator policy) |
| Verify by | published IP ranges |
| Published ranges | 529 IPv4 + 529 IPv6 · json · source |
Generates the link preview when somebody sends one of your URLs in Google Messages. 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.
Your links appear as bare URLs with no title or image in Google Messages chats. A preview fetcher is almost never the one you meant to block.
GoogleMessages
User-agent: GoogleMessages Allow: /
Operator documentation: https://developers.google.com/search/docs/crawling-indexing/google-user-triggered-fetchers
Machine copies: json ·
markdown
Policies that name this crawler:
allow-all · allow-ai-search-only · block-disputed · maximum-ai-visibility