Amzn-SearchBot

Proving it is real

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

Blocking it

User-agent: Amzn-SearchBot
Disallow: /

(http.user_agent contains "Amzn-SearchBot")

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

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