Amzn-User

Amazon's user-triggered fetcher. It supports user actions such as answering Alexa questions that need up-to-date information. Amazon says it may not follow all robots.txt directives and doesn't crawl for generative AI training.

What happens if you block it

Alexa may not be able to read your page live when answering a user's question. Amazon says Amzn-User may not follow every robots.txt directive.

Our take

Allow it if you want Alexa to quote current information from your site. Robots.txt alone may not stop it.

robots.txt

To block it:

User-agent: Amzn-User
Disallow: /

To allow it explicitly (useful when a wider rule blocks other bots):

User-agent: Amzn-User
Allow: /

The operator's own words

Because actions taken by Amzn-User can be initiated by a user, it may not follow all robots.txt directives.Amzn-User does not crawl content for generative AI model training.Amazon documentation, checked 2026-11-04

robots.txt allows it, but is it really getting through?

A firewall or CDN rule can reject Amzn-User even when robots.txt welcomes it, and nothing in your CMS shows it. Our check sends a live request as Amzn-User alongside a normal browser and a Googlebot control, so a bot-verification rule isn't mistaken for a block.

Other Amazon agents