01 · Operator
Who operates Amzn-User
- Company
- Amazon
- Type
- AI assistant fetcher
- Official docs
- developer.amazon.com
02 · Behavior
What Amzn-User does
Amzn-User fetches web pages when a user request needs current information, such as an Alexa query. Amazon states it does not crawl content for generative AI model training. Because actions are user-initiated, it may not follow all robots.txt directives.
03 · Impact
Why Amzn-User matters for your site
If you allow it
- Lets Alexa and other Amazon services answer with your current content
- Not used for AI model training
- IP addresses are published
If you block it
- May not follow all robots.txt rules
- Users get answers without visiting your site
04 · Allow
How to allow Amzn-User
robots.txt
User-agent: Amzn-User
Allow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "Amzn-User")
Action: Skip › All Super Bot Fight Mode rules
# Also check Security › Bots: "Block AI bots" can block it regardless of robots.txt.WordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: Amzn-User
Allow: /nginx
# nginx serves every user agent by default.
# Make sure no rule like this blocks it:
# if ($http_user_agent ~* "Amzn\-User") { return 403; }Apache
# Apache serves every user agent by default.
# Make sure .htaccess has no rule like this:
# RewriteCond %{HTTP_USER_AGENT} Amzn\-User [NC]
# RewriteRule .* - [F,L]05 · Block
How to block Amzn-User
Amzn-User does not always follow robots.txt. Add a server or CDN rule if you need a hard block.
robots.txt
User-agent: Amzn-User
Disallow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "Amzn-User")
Action: BlockWordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: Amzn-User
Disallow: /nginx
# In your server { } block:
if ($http_user_agent ~* "Amzn\-User") {
return 403;
}Apache
# .htaccess
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Amzn\-User [NC]
RewriteRule .* - [F,L]
</IfModule>06 · User agents
User agents we see for Amzn-User
The user agent published by the operator:
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amzn-User/0.1) Chrome/W.X.Y.Z Safari/537.3607 · Verification
Is it really Amzn-User?
Anyone can copy a user agent. Real Amzn-User requests come from the IP ranges published at developer.amazon.com/amazonbot/live-ip-addresses/.
FAQ
Questions about Amzn-User
What is Amzn-User?
Amzn-User is Amazon's user-initiated fetcher. It retrieves live information, for example to answer Alexa questions.
Does Amzn-User respect robots.txt?
Partly. Amazon says it may not follow all robots.txt directives because its actions are user-initiated.
Is Amzn-User used for AI training?
No. Amazon states that Amzn-User does not crawl content for generative AI model training.
Last reviewed Oct 7, 2026