Google-NotebookLM
Fetches a page when a NotebookLM user adds it as a source. Strictly user-initiated - one URL, one user, one notebook - which is why Google files it under user-triggered fetchers rather than crawlers.
Verification
Operator documentation: https://developers.google.com/search/docs/crawling-indexing/google-user-triggered-fetchers
Published IP list: https://developers.google.com/static/search/apis/ipranges/user-triggered-fetchers-google.json
A user agent is a claim, not a proof: any client can send any name. Where an operator publishes IP ranges, a reverse lookup is the only way to tell a real visit from an impersonation.
Seen by Baseline
Requests from this bot across sites tracked by Baseline, last 30 days. Aggregated over - sites, never reported per site.
Last updated 2026-09-04. Written and maintained by Baseline Labs.