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AliyunSecBot

Operated by Alibaba Cloud

Quick Facts

User-Agent:AliyunSecBot
Category:Cloud Services
Operator:Alibaba Cloud
Safety:Safe
Blocking Impact:Varies — Evaluate before blocking
SEO Impact Score:0/10

What is AliyunSecBot?

AliyunSecBot is a security crawler from Alibaba Cloud (Aliyun), used to scan for vulnerabilities or malicious content.

AliyunSecBot is a security crawler from Alibaba Cloud (Aliyun), used to scan for vulnerabilities or malicious content. AliyunSecBot is operated by Alibaba Cloud as part of their cloud infrastructure stack. It may perform security scanning, CDN pre-warming, or threat intelligence collection. It uses the user-agent AliyunSecBot. Evaluate whether your site uses Alibaba Cloud services before blocking, as this crawler may be required for service functionality.

What happens if you block AliyunSecBot?

❓ **Impact Unknown** — The SEO consequences of blocking AliyunSecBot are not fully documented. Before blocking, check your analytics to confirm whether this bot generates referral traffic, review your server logs for crawl frequency, and test in a staging environment if possible.
Generally safe to allow; provides legitimate crawling value.

How to block AliyunSecBot with robots.txt

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

Block completely (robots.txt)
User-agent: AliyunSecBot Disallow: /
Allow all (robots.txt)
User-agent: AliyunSecBot Allow: /
Block private only (robots.txt)
User-agent: AliyunSecBot Disallow: /private/ Disallow: /api/ Disallow: /admin/ Allow: /
Nginx server block
# Nginx: Hard-block AliyunSecBot if ($http_user_agent ~* "AliyunSecBot") { return 403 "Bot blocked"; }
Apache .htaccess
# Apache: Hard-block AliyunSecBot SetEnvIfNoCase User-Agent "AliyunSecBot" bad_bot Order Allow,Deny Allow from all Deny from env=bad_bot
Meta robots tag
<meta name="robots" content="noindex, nofollow">
X-Robots-Tag header
X-Robots-Tag: noindex, nofollow

Is AliyunSecBot safe to allow?

Yes, AliyunSecBot is a **safe and legitimate** crawler. It is operated by Alibaba Cloud, which publicly documents its crawler at an official URL and follows the Robots Exclusion Protocol (RFC 9309). The user-agent string AliyunSecBot is verifiable via reverse-DNS lookup on the crawling IP addresses. You can safely allow it unless you have a specific reason to block (e.g., AI training opt-out or SEO tool visibility).
Verify by reverse-DNS lookup: legitimate AliyunSecBot requests resolve to alibaba-cloud's domain.

What does AliyunSecBot do?

Understanding AliyunSecBot's purpose helps you decide whether to allow or block it.

Frequently Asked Questions

What is the official user-agent string for AliyunSecBot?
The official user-agent string for AliyunSecBot is: AliyunSecBot. This is the exact string you must use in robots.txt, Nginx, Apache, or Cloudflare firewall rules to target this bot. User-agent matching in robots.txt is case-insensitive, but the string must be spelled correctly. You can verify that a request genuinely comes from AliyunSecBot by performing a reverse-DNS lookup on the source IP — legitimate bots resolve back to their operator's domain.
Is AliyunSecBot safe?
Yes, AliyunSecBot is a **safe and legitimate** crawler. It is operated by Alibaba Cloud, which publicly documents its crawler at an official URL and follows the Robots Exclusion Protocol (RFC 9309). The user-agent string AliyunSecBot is verifiable via reverse-DNS lookup on the crawling IP addresses. You can safely allow it unless you have a specific reason to block (e.g., AI training opt-out or SEO tool visibility).
Will blocking AliyunSecBot hurt my SEO?
❓ **Impact Unknown** — The SEO consequences of blocking AliyunSecBot are not fully documented. Before blocking, check your analytics to confirm whether this bot generates referral traffic, review your server logs for crawl frequency, and test in a staging environment if possible.
How do I block AliyunSecBot in robots.txt?
Add the following lines to your /robots.txt file: 
User-agent: AliyunSecBot
Disallow: /
This instructs AliyunSecBot not to crawl any path on your site. The Disallow: / directive covers the entire domain including subfolders. To only block specific sections, replace / with the path (e.g., Disallow: /blog/). Note: robots.txt is publicly readable — any bot or human can inspect it at yourdomain.com/robots.txt.
Does AliyunSecBot respect robots.txt?
Yes — AliyunSecBot is a well-behaved bot operated by Alibaba Cloud. It fetches and parses /robots.txt before crawling any page, following RFC 9309.
How do I verify if AliyunSecBot is crawling my site?
Search your web server access logs for the string AliyunSecBot (case-insensitive grep: grep -i "AliyunSecBot" /var/log/nginx/access.log). You can also check Google Search Console → Coverage → Crawl Stats for Googlebot variants. For AliyunSecBot specifically, filter by user-agent in your log analysis tool (GoAccess, AWStats, etc.).
What is the crawl frequency of AliyunSecBot?
AliyunSecBot crawls at a moderate rate. If you notice excessive traffic in your logs, you can add a Crawl-delay directive: 
User-agent: AliyunSecBot
Crawl-delay: 10
(10 second delay between requests).
Can I block AliyunSecBot from specific pages only?
Yes. Instead of a global Disallow: / you can restrict AliyunSecBot to specific paths: 
User-agent: AliyunSecBot
Disallow: /private/
Disallow: /staging/
Allow: /
This allows AliyunSecBot everywhere except the listed paths. Path matching in robots.txt uses prefix matching — Disallow: /private/ blocks /private/page.html but NOT /public/private/.

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