Amzn-User

Amzn-User fetches individual pages in direct response to a user action or an Amazon application’s request — for example, retrieving up-to-date information to answer an Alexa query. Amazon’s own documentation states this crawler is not used to train generative AI models.

A robots.txt limitation worth knowing

Amazon’s own documentation states that Amzn-User “may not follow all robots.txt directives” because its requests are triggered by a specific person, not a bulk crawl. A Disallow rule aimed at this token is not a reliable way to prevent this specific page from being fetched on a user’s behalf — see /limitations for what a robots.txt rule can and cannot guarantee more generally.

Site-owner controls

A robots.txt rule for Amzn-User may not be honoured consistently, per Amazon’s own documentation above. It does not affect Amazonbot (Amazon’s mixed-use, possibly-training crawler) or Amzn-SearchBot (search-experience indexing, which does honour robots.txt), both documented separately.

Related crawlers

Amazon documents Amzn-User alongside Amzn-SearchBot (search-experience crawling, also excluded from AI training) and Amazonbot (mixed use, including possible AI training) on the same page. See Amazonbot vs. Amzn-SearchBot vs. Amzn-User for a side-by-side comparison.

How to verify Amzn-User requests

Amazon documents this user agent:

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

Amazon publishes Amzn-User's IP addresses at https://developer.amazon.com/amazonbot/live-ip-addresses/. Operator documentation.

A user-agent string alone can be copied by anyone; confirming a request really came from Amazon needs your server or CDN logs. CrawlPact audits declared policy and does not see your traffic.

Example robots.txt configuration

To disallow Amzn-User specifically, without affecting any other crawler:

User-agent: Amzn-User
Disallow: /

If no dedicated User-agent: Amzn-User group exists in a domain'srobots.txt, this crawler falls back to whatever the wildcard User-agent: * group says (RFC 9309) — see robots.txt syntax basics for how group selection works. A robots.txt rule is a published instruction; it does not technically prevent access.

Official source

https://developer.amazon.com/amazonbot

Verified against the source above as of 8 September 2026 — see how CrawlPact verifies crawler information.