What is Amazonbot's user-agent string?

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1) Chrome/W.X.Y.Z Safari/537.36 (vendor-documented at developer.amazon.com/amazonbot (labeled an example string; W.X.Y.Z is the current Chrome version))

Amazonbot

Q: What is Amazonbot?

Amazonbot is Amazon's training crawler — it crawls the web to collect content for model training. Blocking it opts your content out of future models but does not affect live answers.

Amazon · Training crawler · Updated 2026-07-19

Amazonbot is Amazon’s training crawler — it crawls the web to collect content for model training. Blocking it opts your content out of future models but does not affect live answers.

User-agent string

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

Source: vendor-documented at developer.amazon.com/amazonbot (labeled an example string; W.X.Y.Z is the current Chrome version).

Does Amazonbot respect robots.txt?

“Amazon respects the Robots Exclusion Protocol, honoring the user-agent and the allow/disallow directives” — note robots.txt may be cached up to 30 days. Honors noarchive (“do not use the page for model training”) and noindex; does not support crawl-delay.

Allow or block Amazonbot

# Allow (recommended if you want Amazonbot traffic)
User-agent: Amazonbot
Allow: /

# Block
User-agent: Amazonbot
Disallow: /

Verifying it’s really Amazonbot

Amazon publishes IP ranges at developer.amazon.com/amazonbot/ip-addresses/ (no reverse-DNS pattern documented). User-agent strings can be spoofed by anyone — identity claims are only trustworthy when the source IP matches the operator’s published ranges.

What site owners should know

Amazon states crawled content “may be used to train Amazon AI models” and to improve products like Alexa. Amazon also documents two siblings with independent robots controls: Amzn-SearchBot (search index, documented as not crawling for generative-AI training) and Amzn-User (live fetches for Alexa answers).

Scan your site to see how your robots.txt, content negotiation, and discovery files treat AI agents — including whether you’re blocking agents you meant to allow. Background: the robots.txt guide, how AI agents browse, and agent readiness.

All AI agent user-agents

ClaudeBot · Claude-User · Claude-SearchBot · GPTBot · OAI-SearchBot · ChatGPT-User · PerplexityBot · Perplexity-User · Google-Extended · Google-Agent · Google-CloudVertexBot · Meta-ExternalAgent · Meta-ExternalFetcher · MistralAI-User · Applebot · Applebot-Extended · Amazonbot · bingbot · DuckAssistBot · CCBot · Bytespider