# Google-NotebookLM

> Google-NotebookLM is an AI-powered research and note-taking assistant that helps users synthesize information from their own uploaded sources, such as documents, transcripts, or web content.

Source: https://docs.centinelanalytica.com/crawlers/google-notebooklm

## At a glance

- Operator: Google
- Type: AI Assistant
- RSL category: `ai-input`

## How Centinel checks it

- **User agent**: The request calls itself this crawler. Anyone can send the same string.
- **IP ranges**: The operator publishes the addresses it crawls from, and Centinel checks the client address against that list.
- **Reverse DNS**: The client address resolves to a hostname the operator controls, and that hostname resolves back to the same address.

A request that passes one of these checks is Google-NotebookLM itself. One that only matches the user agent is reported as unverified. The match tokens, verification domains, and address feeds are not published here.

## Allowing or blocking it

The [crawler object](https://docs.centinelanalytica.com/api/crawlers.md) in the `/validate` response sets `access_allowed` to `true` only for a verified source that your tenant allowlists. A [policy rule](https://docs.centinelanalytica.com/admin/policy.md) can allow or block this crawler by its category, `AI Assistant`.

[Back to the crawler catalog](https://docs.centinelanalytica.com/concepts/crawler-catalog.md)

[Crawlers with a source check](https://docs.centinelanalytica.com/crawlers.md)