AI crawlers · Amazon · Fetches when a user asks · Counted in the score

Amzn-User

Fetches live information when a user asks, such as an Alexa question that needs current facts; not used for training. Because a user starts it, Amazon says it may not follow every robots.txt directive.

Where this comes from

  • Documented by the vendor. Source: developer.amazon.com
  • May bypass robots.txt for user-requested fetches.
  • Counted in the readiness score. It can keep a site out of AI search or answers, so a block costs points.

In the top 1,000 websites

Not measured in the October 2026 study of the top 1,000 websites.

What blocking it costs

A rule may not stop it: Amzn-User fetches a page because a person asked about it, and its vendor says such fetches can bypass robots.txt. Where it does honour the rule, the assistant cannot read your page when asked. The score counts it, so a block costs points.

The robots.txt lines

To let it in (a group that names the crawler replaces any wildcard rules for it, so this also lifts a User-agent: * block):

User-agent: Amzn-User
Allow: /

To keep it out:

User-agent: Amzn-User
Disallow: /

A rule in robots.txt is a request. Amazon says a fetch a user asked for may go ahead regardless. The robots.txt generator writes a whole file with the same split: block the training crawlers, keep the search and answer crawlers.

Also from Amazon

Does Amzn-User get through on your site?

Run the free check: it reads your robots.txt against all 60 crawlers and tells you which ones can read you, and what to change.