About
Semrush's web crawler powering one of the largest digital marketing intelligence platforms. Tracks rankings, backlinks, and site health for millions of domains. Frequently encountered by webmasters — it crawls aggressively and its presence usually means your site is being monitored by a competitor's SEO team.
Purpose
SEO competitive intelligence and site audit data collection
User Agent String
Mozilla/5.0 (compatible; SemrushBot/7~bl; +https://www.semrush.com/bot.html)
How to Control in robots.txt
🚫 Block SemrushBot
User-agent: SemrushBot Disallow: /
✅ Allow SemrushBot
User-agent: SemrushBot Allow: /
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