01 · Operator
Who operates coccocbot
- Company
- Cốc Cốc
- Official docs
- help.coccoc.com
02 · Behavior
What coccocbot does
coccocbot fetches websites for the Cốc Cốc search engine. It appears under several names, such as coccocbot-web and coccocbot-fast. All variants contain the token coccocbot.
03 · Impact
Why coccocbot matters for your site
If you allow it
- Your pages can appear in Cốc Cốc search
- Relevant for audiences in Vietnam
If you block it
- Little value without a Vietnamese audience
- Adds crawl load
04 · Allow
How to allow coccocbot
robots.txt
User-agent: coccocbot
Allow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "coccocbot")
Action: Skip › All Super Bot Fight Mode rules
# Also check Security › Bots: "Block AI bots" can block it regardless of robots.txt.WordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: coccocbot
Allow: /nginx
# nginx serves every user agent by default.
# Make sure no rule like this blocks it:
# if ($http_user_agent ~* "coccocbot") { return 403; }Apache
# Apache serves every user agent by default.
# Make sure .htaccess has no rule like this:
# RewriteCond %{HTTP_USER_AGENT} coccocbot [NC]
# RewriteRule .* - [F,L]05 · Block
How to block coccocbot
Start with robots.txt. If coccocbot keeps showing up in your logs, block it at your CDN or web server.
robots.txt
User-agent: coccocbot
Disallow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "coccocbot")
Action: BlockWordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: coccocbot
Disallow: /nginx
# In your server { } block:
if ($http_user_agent ~* "coccocbot") {
return 403;
}Apache
# .htaccess
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} coccocbot [NC]
RewriteRule .* - [F,L]
</IfModule>06 · User agents
User agents we see for coccocbot
The user agent published by the operator:
Mozilla/5.0 (compatible; coccocbot-fast/1.0; +http://help.coccoc.com/searchengine)07 · Verification
Is it really coccocbot?
coccocbot’s operator publishes no IP ranges or hostnames, so requests cannot be verified. Treat the user agent as a claim, and watch your logs for unusual request rates.
FAQ
Questions about coccocbot
What is coccocbot?
coccocbot is the crawler of the Vietnamese search engine Cốc Cốc.
What is coccocbot-web?
It is one of the coccocbot variants. A robots.txt group for coccocbot matches all variants by name.
How do I block coccocbot?
Add User-agent: coccocbot and Disallow: / to your robots.txt.
Last reviewed Oct 7, 2026