Amazon Nova Act: User Agent, robots.txt Rules & Safety

Q: What user-agent string does Amazon Nova Act use?

Amazon Nova Act is reported to identify itself with NovaAct. That spelling comes from ai.robots.txt, not from Amazon, which has not published crawler documentation naming it. Use it in robots.txt as the best available match, and treat a request carrying it as a clue rather than proof of who sent it.

Q: Is Amazon Nova Act safe?

Amazon Nova Act is rated Safe in this directory, meaning there are no credible public reports of abusive crawling under this name. It is a Reported token: Amazon has not published documentation for it, so its purpose, crawl rate and robots.txt behaviour are not confirmed by the operator, and anyone can send the same user-agent string. Allow or block it on its stated purpose, and back the robots.txt rule with a firewall rule if the traffic matters to you.

Q: Will blocking Amazon Nova Act hurt my SEO?

✅ No SEO Impact - Blocking Amazon Nova Act does not affect your rankings in Google, Bing, or any other search engine. Amazon Nova Act is an AI crawler, not a traditional search indexer. You can freely block it via User-agent / Disallow: / without any SEO penalty.

Q: How do I block Amazon Nova Act in robots.txt?

Add the following lines to your /robots.txt file: User-agent: NovaAct Disallow: / This instructs Amazon Nova Act not to crawl any path on your site. To block only specific sections, replace / with the path (e.g., Disallow: /blog/).

Q: How do I verify if Amazon Nova Act is crawling my site?

Search your access logs for NovaAct (for example grep -i "NovaAct" /var/log/nginx/access.log). Because the operator publishes no IP ranges or reverse-DNS pattern, a match shows that something used the name, not that Amazon sent it.

Quick Facts

User-Agent:: NovaAct
Category:: AI & LLM Bots
Operator:: Amazon
Safety:: Safe
Blocking Impact:: Low - No SEO ranking impact
SEO Impact Score:: 2/10
Official docs:: None published by Amazon
Named by:: ai.robots.txt

Reported, not operator documented

Amazon has not published a crawler page that names NovaAct. It is listed here because a credible public source does: ai.robots.txt. Amazon Nova Act agent token, reported in registries. Amazon's bot page does not list it.

What that means for you: the robots.txt rule on this page is the best available spelling, and a well-behaved crawler using this string will honour it, but there is no vendor statement of purpose, crawl rate or robots.txt compliance to rely on. Treat a matching request in your logs as a detection clue, not proof of who sent it, and combine the rule with a firewall rule if the traffic matters to you. If the operator publishes documentation, this profile moves to Official docs.

What is Amazon Nova Act?

Amazon Nova Act is a developer-facing extraction agent operated by Amazon. It fetches and structures web content on behalf of applications and AI agents built on Amazon's platform. Traffic volume depends on how third-party developers configure it, so monitor your logs if you see heavy activity.

Amazon Nova Act is a developer-facing extraction agent operated by Amazon. It fetches and structures web content on behalf of applications and AI agents built on Amazon's platform. Traffic volume depends on how third-party developers configure it, so monitor your logs if you see heavy activity.
Amazon Nova Act uses the user-agent token NovaAct. You can control it via robots.txt, meta tags (noai), or the emerging llms.txt standard. Robots.txt is voluntary; for hard enforcement, combine it with server-level IP blocking.

What happens if you block Amazon Nova Act?

✅ No SEO Impact - Blocking Amazon Nova Act does not affect your rankings in Google, Bing, or any other search engine. Amazon Nova Act is an AI crawler, not a traditional search indexer. You can freely block it via User-agent / Disallow: / without any SEO penalty.

Generally safe to allow; provides legitimate crawling value.

How to block Amazon Nova Act with robots.txt

<code>User-agent: NovaAct</code> - Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.

Block completely (robots.txt)

User-agent: NovaAct
Disallow: /

Allow all (robots.txt)

User-agent: NovaAct
Allow: /

Block private only (robots.txt)

User-agent: NovaAct
Disallow: /private/
Disallow: /api/
Disallow: /admin/
Allow: /

Nginx server block

# Nginx: Hard-block Amazon Nova Act
if ($http_user_agent ~* "NovaAct") {
    return 403 "Bot blocked";
}

Apache .htaccess

# Apache: Hard-block Amazon Nova Act
SetEnvIfNoCase User-Agent "NovaAct" bad_bot
Order Allow,Deny
Allow from all
Deny from env=bad_bot

Meta robots tag

X-Robots-Tag header

X-Robots-Tag: noindex, nofollow

Is Amazon Nova Act safe to allow?

Amazon Nova Act is rated Safe in this directory, meaning there are no credible public reports of abusive crawling under this name. It is a Reported token: Amazon has not published documentation for it, so its purpose, crawl rate and robots.txt behaviour are not confirmed by the operator, and anyone can send the same user-agent string. Allow or block it on its stated purpose, and back the robots.txt rule with a firewall rule if the traffic matters to you.

Amazon publishes no IP ranges or reverse-DNS pattern for Amazon Nova Act, so the user-agent string cannot be verified. Rate-limit unusual volume instead of trusting the name.

What does Amazon Nova Act do?

Understanding Amazon Nova Act's purpose helps you decide whether to allow or block it.

Extracts and structures web content for developer applications
Powers AI agents built on the operator platform
Volume depends on third-party developer configuration
Monitor logs if you notice heavy activity
Can be rate-limited via robots.txt or server rules

Frequently Asked Questions

What user-agent string does Amazon Nova Act use?

Amazon Nova Act is reported to identify itself with NovaAct. That spelling comes from ai.robots.txt, not from Amazon, which has not published crawler documentation naming it. Use it in robots.txt as the best available match, and treat a request carrying it as a clue rather than proof of who sent it.

Is Amazon Nova Act safe?

Amazon Nova Act is rated Safe in this directory, meaning there are no credible public reports of abusive crawling under this name. It is a Reported token: Amazon has not published documentation for it, so its purpose, crawl rate and robots.txt behaviour are not confirmed by the operator, and anyone can send the same user-agent string. Allow or block it on its stated purpose, and back the robots.txt rule with a firewall rule if the traffic matters to you.

Will blocking Amazon Nova Act hurt my SEO?

✅ No SEO Impact - Blocking Amazon Nova Act does not affect your rankings in Google, Bing, or any other search engine. Amazon Nova Act is an AI crawler, not a traditional search indexer. You can freely block it via User-agent / Disallow: / without any SEO penalty.

How do I block Amazon Nova Act in robots.txt?

Add the following lines to your /robots.txt file:

User-agent: NovaAct
Disallow: /

This instructs Amazon Nova Act not to crawl any path on your site. To block only specific sections, replace / with the path (e.g., Disallow: /blog/).

Does Amazon Nova Act respect robots.txt?

Not documented. Amazon has published no statement that Amazon Nova Act reads robots.txt. A rule for NovaAct will stop a client that chooses to honour it; for enforcement, add a firewall or CDN rule as well.

How do I verify if Amazon Nova Act is crawling my site?

Search your access logs for NovaAct (for example grep -i "NovaAct" /var/log/nginx/access.log). Because the operator publishes no IP ranges or reverse-DNS pattern, a match shows that something used the name, not that Amazon sent it.