amazon-kendra
amazon-kendra is a bot operated by Amazon that indexes pages so an AI answer engine can cite them. Amazon Kendra is a highly accurate intelligent search service that enables your users to search unstructured data using natural language. It is documented as honouring robots.txt, but no IP range list or reverse-DNS convention is published, so a request carrying this user agent cannot be proven genuine.
amazon-kendra at a glance
| User agent | amazon-kendraToken only. The operator has not published a full user-agent string, so match on the substring rather than an exact header. |
|---|---|
| Operator | Amazon |
| Purpose | Collects data for AI natural language search |
| Respects robots.txt | Yes, documented |
| Verification method | None published, user agent only No IP range file and no reverse-DNS convention have been published for this agent. The user-agent string is the only signal, and any client can send it, so treat a match as a claim rather than proof. |
| Crawl pattern | Not published |
| Robots.txt tokens | amazon-kendra |
| Operator documentation | None published |
Amazon Kendra is a highly accurate intelligent search service that enables your users to search unstructured data using natural language. It returns specific answers to questions, giving users an experience that's close to interacting with a human expert. It is highly scalable and capable of meeting performance demands, tightly integrated with other AWS services such as Amazon S3 and Amazon Lex, and offers business security.
Allow or block amazon-kendra
Paste one of these into the robots.txt file at the root of your domain. Rules are per token, so a block on one crawler leaves every other bot untouched.
User-agent: amazon-kendra
Disallow: /Blocks every path for this crawler only.
User-agent: amazon-kendra
Allow: /Explicit allow. Useful when a wildcard rule above it would otherwise catch this crawler.
User-agent: amazon-kendra
Allow: /
Disallow: /account/
Disallow: /checkout/
Disallow: /searchEdit the Disallow paths to match your own account, checkout and search URLs.
What blocking actually costs you
Blocking amazon-kendra takes the site out of the index behind its answers, so it stops being cited there. If referral traffic from AI answers matters to you, block the training crawler instead and leave this one alone.
Block every crawler in the directory at onceIs that really amazon-kendra?
A user-agent header is a string the client chooses. Scrapers copy amazon-kendra precisely because site owners allow it. No IP range file and no reverse-DNS convention have been published for this agent. The user-agent string is the only signal, and any client can send it, so treat a match as a claim rather than proof.
Paste the IP address from your access log below. You will see whether it belongs to a hosting provider, a residential proxy pool or a Tor exit, plus the ASN that announces it, which is what tells you whether the claim holds up.
Other crawlers run by Amazon
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Identify crawlers automatically instead of by hand
Agentscan checks a request against published crawler ranges, reverse DNS and hosting data, then returns a verdict your edge can act on. One call per request, no range files to keep up to date.