GrokBot user agent
Operated by xAI
GrokBot is a user agent reported for xAI, linked to collecting web content for Grok.
The GrokBot bot at a glance
- GrokBot is operated by xAI and collects public web pages that may be used to train AI models, and indexes web pages so an AI search product can show and cite them in answers.
- The robots.txt token for GrokBot is GrokBot.
- Blocking an AI search crawler has no effect on Google or Bing rankings.
- GrokBot robots.txt support: Not documented.
- Recommendation for Generative Engine Optimization (GEO): Your choice.
What is GrokBot?
Public registries list GrokBot as an xAI crawler connected to Grok search and model training.
xAI has not published a crawler page, so its exact purpose is not confirmed.
Should you block GrokBot?
Blocking GrokBot is a business decision: it protects your content but can lower how well AI products know your brand.
| Effect on search rankings | Blocking an AI search crawler has no effect on Google or Bing rankings. |
|---|---|
| Effect on AI visibility | Blocking removes your pages from that AI search index, so its answers can no longer cite or link to your website. |
| Follows robots.txt | Not documented |
| Recommendation | Your choice |
How to block or allow GrokBot
Put the robots.txt rule in the file at the root of every domain and subdomain, for example https://example.com/robots.txt. The token GrokBot is matched case-insensitively. robots.txt alone may not stop GrokBot, so add the Nginx, Apache or Cloudflare rule as well.
robots.txt: block
# Block GrokBot
User-agent: GrokBot
Disallow: /robots.txt: allow
# Allow GrokBot
User-agent: GrokBot
Allow: /robots.txt: partial
# Keep GrokBot out of private areas only
User-agent: GrokBot
Disallow: /wp-admin/
Disallow: /cart/
Disallow: /checkout/
Disallow: /my-account/
Allow: /Nginx
# Nginx: return 403 to GrokBot
if ($http_user_agent ~* "(GrokBot)") {
return 403;
}Apache
# Apache .htaccess: return 403 to GrokBot
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (GrokBot) [NC]
RewriteRule .* - [F,L]Cloudflare WAF
# Cloudflare > Security > WAF > Custom rule, action: Block
(http.user_agent contains "GrokBot")How to verify real GrokBot traffic
xAI publishes no IP list or reverse DNS pattern for GrokBot, so the user agent cannot be verified. Anyone can send the same string. Rate-limit unusual volume instead of trusting the name.
How to find GrokBot in your server logs
Search the web server access log for the token. The command below counts GrokBot requests per URL on Nginx or Apache.
grep -i "GrokBot" access.log | awk '{print $7}' | sort | uniq -c | sort -rn | head -20For a full report per AI bot, upload the log to the AI Log File Analyzer, a free tool by Justin Hà.
GrokBot FAQ
GrokBot uses the robots.txt token "GrokBot". xAI does not publish a full user-agent string, so match the token inside the User-Agent header.
xAI has not documented how GrokBot treats robots.txt. Add a robots.txt rule and back it with a server rule if the traffic matters to you.
Blocking an AI search crawler has no effect on Google or Bing rankings. Blocking removes your pages from that AI search index, so its answers can no longer cite or link to your website.
Add two lines to the robots.txt file at the root of each domain and subdomain: "User-agent: GrokBot" followed by "Disallow: /". The token is case-insensitive. Changes can take up to 24 hours to be picked up.
Not reliably. xAI publishes no IP list or reverse DNS pattern for GrokBot, so anyone can send the same user agent. Rate-limit unusual volume instead of trusting the name.
Search your server access log for "GrokBot", for example with: grep -i "GrokBot" access.log. The AI Log File Analyzer by Justin Hà counts visits per AI bot from an uploaded log file.
Sources: Public bot registry. Last reviewed by Justin Hà.
See which of these bots actually reach your website
The AI Log File Analyzer by Justin Hà counts visits from GPTBot, ClaudeBot, PerplexityBot and other AI crawlers in your server log, for free. The GEO Technical Package sets up robots.txt, llms.txt and crawler access for AI search.
