Amzn-User is Amazon's user-triggered AI fetcher: it fetches a page when a user asks the assistant about it. It is the #22 most blocked of the 29 AI crawlers in the index.

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

Add these lines to https:// /robots.txt: "User-agent: Amzn-User" followed by "Disallow: /". To allow it, use "Allow: /" instead. Well-behaved crawlers read robots.txt before fetching pages; firewall rules are needed to stop crawlers that ignore it.

How do I check whether my site blocks Amzn-User?

Use the free AI crawler checker at tools.yukai.uk/free/ai-crawler-checker: it shows the status of Amzn-User and 28 other AI crawlers with the exact robots.txt rule.

AI crawler · Amazon · User-triggered fetch

Which websites block Amzn-User?

As of 2026-10-01, 47 of the 853 popular websites whose robots.txt we could read (5.5%) block Amzn-User, Amazon's user-triggered AI fetcher, on the home page; 3 more block it on some paths. Among the top 100 sites: 12%.

5.5%

of 853 readable sites block Amzn-User

12%

of the top 100

#22

most blocked of 29 AI crawlers

803

sites allow it on the home page

Blocked by category

Category	Sites read	Block Amzn-User
Social	48	18.8%
News & media	126	10.3%
Travel	13	7.7%
Other	260	5.8%
Reference	43	4.7%
Entertainment	68	4.4%
E-commerce	58	3.4%
Tech	154	1.3%
AI	9	0%
Education	20	0%
Finance	16	0%
Government	33	0%
Telecom	5	0%

Sites that block Amzn-User on some paths (3)

imdb.com Reference
reuters.com News & media
capcut.com Other

Trend

The daily series for Amzn-User starts on 2026-10-01; a trend appears here as days accumulate.

Latest changes

dailymotion.com: blocked → allowed

Block or allow Amzn-User

User-agent: Amzn-User
Disallow: /

Replace Disallow: / with Allow: / to let it in. A site that blocks training crawlers but wants to be cited in AI answers usually keeps the search and user-triggered crawlers allowed.

FAQ

How many websites block Amzn-User?: As of 2026-10-01, 47 of the 853 popular websites whose robots.txt we could read (5.5%) block Amzn-User, Amazon's user-triggered AI fetcher, on the home page; 3 more block it on some paths. Among the top 100 sites: 12%.
What is Amzn-User?: Amzn-User is Amazon's user-triggered AI fetcher: it fetches a page when a user asks the assistant about it. It is the #22 most blocked of the 29 AI crawlers in the index.
How do I block Amzn-User in robots.txt?: Add these lines to https://<your-site>/robots.txt: "User-agent: Amzn-User" followed by "Disallow: /". To allow it, use "Allow: /" instead. Well-behaved crawlers read robots.txt before fetching pages; firewall rules are needed to stop crawlers that ignore it.
How do I check whether my site blocks Amzn-User?: Use the free AI crawler checker at tools.yukai.uk/free/ai-crawler-checker: it shows the status of Amzn-User and 28 other AI crawlers with the exact robots.txt rule.

Other AI crawlers

Also from Amazon: Amazonbot (13.1%), Amzn-SearchBot (5.9%).