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# Amzn-User

> Amzn-User is an AI assistant fetcher run by Amazon. It supports user actions, such as answering Alexa questions that need up-to-date information, by fetching live web content on the user's behalf. Amazon says it does not crawl content for generative AI training.

- Operator: Amazon
- Kind: AI assistant fetcher
- robots.txt token: Amzn-User
- Follows robots.txt: partly
- Source: https://developer.amazon.com/docs/amazonbot/amazonbot.html (checked 2026-11-05)
- Page: https://invisit.dev/bots/amzn-user

## What is Amzn-User?

It supports user actions, such as answering Alexa questions that need up-to-date information, by fetching live web content on the user's behalf. Amazon says it does not crawl content for generative AI training.

Fetches a page because a person asked an assistant about it, right now. Operators often say robots.txt does not apply to these user-triggered fetches.

Amazon says that because Amzn-User actions can be started by a user, it may not follow all robots.txt directives.

- [Amazon’s documentation](https://developer.amazon.com/docs/amazonbot/amazonbot.html)

## Amzn-User user agent

Amazon documents this user agent for Amzn-User. Version numbers in it change over time, so match on the name, not the whole string.

```
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amzn-User/0.1) Chrome/W.X.Y.Z Safari/537.36
```

## Should you block Amzn-User?

Usually allow it. Each fetch is a person asking about your page right now, which is close to a visit. Blocking it in robots.txt may not stop it, since operators often treat these fetches as the person’s own.

## How to block Amzn-User in robots.txt

Add a group for its token to robots.txt at the root of your site. Amazon says it follows robots.txt only in part, so this may not stop every fetch.

A bot follows only the group that names it, so it ignores your `User-agent: *` rules once it has a group of its own. Repeat any paths you also want kept from it there.

```
User-agent: Amzn-User
Disallow: /
```

- [Build a robots.txt for AI bots](https://invisit.dev/tools/robots-txt-generator)

## How to verify a request is really Amzn-User

Anyone can send any user agent, so the string alone proves nothing.

Amazon publishes the IP ranges Amzn-User crawls from. A request that claims to be Amzn-User from any other address is not Amzn-User.

- [Amzn-User IP ranges](https://developer.amazon.com/amazonbot/live-ip-addresses/)

## See when Amzn-User reads your site

Bots don’t run JavaScript analytics, so a script tag never sees them. invisit records crawler reads on the server instead, through its server SDK or a Cloudflare Worker, and shows which bots read which pages, next to your visitors.

- [Track crawlers with invisit](https://invisit.dev/docs/server/sdk#crawler-reads)

## Common questions

### What is Amzn-User?

Amzn-User is an AI assistant fetcher run by Amazon. It supports user actions, such as answering Alexa questions that need up-to-date information, by fetching live web content on the user's behalf. Amazon says it does not crawl content for generative AI training.

### Is Amzn-User safe to block?

Usually allow it. Each fetch is a person asking about your page right now, which is close to a visit. Blocking it in robots.txt may not stop it, since operators often treat these fetches as the person’s own.

### How do I block Amzn-User?

Add “User-agent: Amzn-User” followed by “Disallow: /” to your robots.txt. Amazon doesn’t promise to follow it in every case, so block it at your server too if it matters.