Bots by company
Yahoo! JAPAN bots and crawlers
Yahoo! JAPAN, part of LY Corporation, runs one of the most visited portals and search services in Japan.
Yahoo! JAPAN bots at a glance
- Yahoo! JAPAN runs 1 bot listed in this directory.
- They belong to: Search Engine Crawlers.
- Each Yahoo! JAPAN bot has its own robots.txt token, so each purpose can be allowed or blocked separately.
- Website: www.yahoo.co.jp
Every Yahoo! JAPAN bot
| Bot | Group | Purpose | robots.txt | For GEO |
|---|---|---|---|---|
| Yahoo! JAPAN crawlerY!J | Search Engine Crawlers | Search indexReported | Not documented | Allow |
Block or allow all Yahoo! JAPAN bots
The rules below name every Yahoo! JAPAN token in this directory. To block training but keep AI search, delete the search and assistant tokens from the block rule.
robots.txt: block
# Block all Yahoo! JAPAN bots
User-agent: Y!J
Disallow: /robots.txt: allow
# Allow all Yahoo! JAPAN bots
User-agent: Y!J
Allow: /robots.txt: partial
# Keep all Yahoo! JAPAN bots out of private areas only
User-agent: Y!J
Disallow: /wp-admin/
Disallow: /cart/
Disallow: /checkout/
Disallow: /my-account/
Allow: /Nginx
# Nginx: return 403 to all Yahoo! JAPAN bots
if ($http_user_agent ~* "(Y\!J)") {
return 403;
}Apache
# Apache .htaccess: return 403 to all Yahoo! JAPAN bots
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (Y\!J) [NC]
RewriteRule .* - [F,L]Cloudflare WAF
# Cloudflare > Security > WAF > Custom rule, action: Block
(http.user_agent contains "Y!J")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.
