Bots by company
Semrush bots and crawlers
Semrush runs an online visibility and SEO platform with backlink, audit and content tools.
Semrush bots at a glance
- Semrush runs 7 bots listed in this directory.
- They belong to: SEO Tool Crawlers.
- Each Semrush bot has its own robots.txt token, so each purpose can be allowed or blocked separately.
- Website: www.semrush.com
Every Semrush bot
| Bot | Group | Purpose | robots.txt | For GEO |
|---|---|---|---|---|
| SemrushBot | SEO Tool Crawlers | Search indexProduct featureOfficial docs | Yes | Your choice |
| SemrushBot-BA | SEO Tool Crawlers | Product featureOfficial docs | Yes | Your choice |
| SemrushBot-OCOB | SEO Tool Crawlers | Product featureOfficial docs | Yes | Your choice |
| SemrushBot-SI | SEO Tool Crawlers | Product featureOfficial docs | Yes | Your choice |
| SemrushBot-SWA | SEO Tool Crawlers | Product featureOfficial docs | Yes | Your choice |
| SiteAuditBot | SEO Tool Crawlers | Product featureOfficial docs | Yes | Allow |
| SplitSignalBot | SEO Tool Crawlers | Product featureOfficial docs | Yes | Your choice |
Block or allow all Semrush bots
The rules below name every Semrush 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 Semrush bots
User-agent: SemrushBot
User-agent: SemrushBot-BA
User-agent: SemrushBot-OCOB
User-agent: SemrushBot-SI
User-agent: SemrushBot-SWA
User-agent: SiteAuditBot
User-agent: SplitSignalBot
Disallow: /robots.txt: allow
# Allow all Semrush bots
User-agent: SemrushBot
User-agent: SemrushBot-BA
User-agent: SemrushBot-OCOB
User-agent: SemrushBot-SI
User-agent: SemrushBot-SWA
User-agent: SiteAuditBot
User-agent: SplitSignalBot
Allow: /robots.txt: partial
# Keep all Semrush bots out of private areas only
User-agent: SemrushBot
User-agent: SemrushBot-BA
User-agent: SemrushBot-OCOB
User-agent: SemrushBot-SI
User-agent: SemrushBot-SWA
User-agent: SiteAuditBot
User-agent: SplitSignalBot
Disallow: /wp-admin/
Disallow: /cart/
Disallow: /checkout/
Disallow: /my-account/
Allow: /Nginx
# Nginx: return 403 to all Semrush bots
if ($http_user_agent ~* "(SemrushBot|SemrushBot\-BA|SemrushBot\-OCOB|SemrushBot\-SI|SemrushBot\-SWA|SiteAuditBot|SplitSignalBot)") {
return 403;
}Apache
# Apache .htaccess: return 403 to all Semrush bots
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (SemrushBot|SemrushBot\-BA|SemrushBot\-OCOB|SemrushBot\-SI|SemrushBot\-SWA|SiteAuditBot|SplitSignalBot) [NC]
RewriteRule .* - [F,L]Cloudflare WAF
# Cloudflare > Security > WAF > Custom rule, action: Block
(http.user_agent contains "SemrushBot") or (http.user_agent contains "SemrushBot-BA") or (http.user_agent contains "SemrushBot-OCOB") or (http.user_agent contains "SemrushBot-SI") or (http.user_agent contains "SemrushBot-SWA") or (http.user_agent contains "SiteAuditBot") or (http.user_agent contains "SplitSignalBot")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.
