AmazonLive fetcher

Amzn-User

Q: What is the Amzn-User user-agent string?

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amzn-User/0.1) Chrome/W.X.Y.Z Safari/537.36. Match the name Amzn-User rather than the whole string, because version numbers change, then check the source against Amazon’s published IP ranges.

Q: How do I block Amzn-User in robots.txt?

Add "User-agent: Amzn-User" followed by "Disallow: /" to the robots.txt file at the root of your site. Amazon states this fetcher may not follow all robots.txt directives because the request is user initiated.

Q: What is the difference between Amzn-User, Amzn-SearchBot and Amazonbot?

Amzn-User is a user fetch: it reads a page when a person asks about it. Amzn-SearchBot is for search: it indexes pages so answers can find and cite them. Amazonbot is for other uses, separate from training and search. bedrockbot is for other uses, separate from training and search. Each has its own robots.txt token, so a rule for one does not cover the others.

Q: How do I know a request really came from Amzn-User?

Check the source, not just the name. Amazon publishes published ip ranges at developer.amazon.com/amazonbot/live-ip-addresses/. A request outside that list is not from Amazon, whatever its user-agent says.

Amzn-User is an Amazon fetcher that retrieves a specific page because a person asked an Amazon assistant about it.

Reads a page when someone asks Alexa about it.

Get the robots.txt rule Amazon documentation

Is Amzn-User allowed on your site?2 Amazon bots

Amzn-SearchBotSearch
Not checked
Amzn-UserUser fetch
Not checked

Reads your live robots.txt and applies the same rules these crawlers use. Nothing is stored.

robots.txt token: Amzn-User
Follows robots.txt: Not always
How to verify it: Published IP ranges
Seen on: Not measured
Last checked: 11 August 2026

Should you block Amzn-User?

Usually not. It reads a page only when a person asks Alexa about it, so blocking it hides your page from someone already looking for it.

What blocking each Amazon bot does
Amazon bot	Job	If you block it
Amzn-SearchBot	Search	Allowing it makes your content eligible to appear in Amazon search experiences such as Alexa. Amazon says it does not crawl content for generative AI model training.
Amzn-UserThis page	User fetch	Blocking it can stop Amazon assistants from reading your page when a customer asks about it directly.
Amazonbot	Other	Blocking it limits Amazon’s general product-improvement and potential AI training crawl path. Amazon now uses separate Amzn-SearchBot and Amzn-User agents for search and live user requests.
bedrockbot	Other	A hit usually means your URL was selected for a Bedrock application data source, not a broad Amazon crawl.

From Amazon’s documentationAmazon says Amzn-User may not follow every robots.txt rule, because a person asked for the page.

About robots.txtAmazon states this fetcher may not follow all robots.txt directives because the request is user initiated.

robots.txt

User-agent: Amzn-User
Disallow: /

Asks Amzn-User not to crawl any page. Other Amazon bots are unaffected. Add it to the robots.txt file at the root of your site, above any wider rules.

Ignored robots.txt?

Also seen under Amazon’s name, but not in its current documentation: amazon-kendra, AmazonBuyForMe, NovaAct. Rules naming them control no documented Amazon crawler.

Spot it in your logs.

Match the name, then check where the request came from. Anyone can copy a user-agent.

User-agentsource

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

Version numbers change. Match the highlighted name, not the whole string.

1
Match the name
Search your server or CDN log for Amzn-User, case-insensitive. A match is a clue, not proof.
2
Check the published IP ranges
Compare the request’s source with the list Amazon publishes. Anything outside it is not Amazon. developer.amazon.com/amazonbot/live-ip-addresses/

Is this really Amzn-User?

Published addresses

Paste an address that claims to be Amzn-User. It is checked against Amazon’s published list. Nothing is stored.

Check any crawler’s address

Serve the content in HTML

The cited operator material does not verify JavaScript rendering. Serve useful HTML before client-side JavaScript where possible.

Questions, answered.

What is Amzn-User?

Amzn-User is an Amazon fetcher that retrieves a specific page because a person asked an Amazon assistant about it.

Does blocking Amzn-User stop Alexa from mentioning my site?

What is the Amzn-User user-agent string?

How do I block Amzn-User in robots.txt?

What is the difference between Amzn-User, Amzn-SearchBot and Amazonbot?

How do I know a request really came from Amzn-User?

Does Amzn-User run JavaScript?

Sources.

Officially documented. Operator facts and Trakkr’s measurements keep separate dates.

[1]
Amazon crawler documentation
Officially documented · checked 11 August 2026
developer.amazon.com/support/amazonbot

First verified 11 August 2026. Last source check 11 August 2026.

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Amzn-User

Should you block Amzn-User?

Spot it in your logs.

Match the name

Check the published IP ranges

Is this really Amzn-User?

Serve the content in HTML

Questions, answered.

Sources.

See which AI crawlers read your site.

Should you block Amzn-User?

Spot it in your logs.

Match the name

Check the published IP ranges

Is this really Amzn-User?

Serve the content in HTML

Questions, answered.

Sources.

Crawlers like Amzn-User.

See which AI crawlers read your site.