Amazon

Amzn-User

Class: User fetch
robots.txt: May bypass robots.txt; Amazon: "may not follow all robots.txt directives".
Evidence: Confirmed from operator documentation; Source

Proving it is real

Amazon publishes no way to confirm this identity, so any request using this name has to be taken on trust.

robots.txt

User-agent: Amzn-User
Disallow: /

Cloudflare custom rule expression

(http.user_agent contains "Amzn-User")

nginx

if ($http_user_agent ~* "Amzn-User") {
    return 403;
}

Matching a name only blocks bots that tell the truth about it. Before you do this, read what each decision costs.

Last reviewed Nov 2, 2026