MJ12bot
MJ12bot is assigned to the SEO category by BotScope. Detection is based on the user-agent string. Current pattern:
MJ12bot
SEO tool crawlers build internal databases for tools like Ahrefs, Semrush, Sistrix or Majestic. They have no direct SEO impact — only the tool accesses the data. Crawl frequency grows with your domain authority.
Once MJ12bot shows up in your logs, BotScope lets you analyze its crawl paths, status codes, IP distribution and temporal activity — by hour, day or week.
robots.txt directive for MJ12bot
If you don't want MJ12bot to crawl your site, add the following block to your /robots.txt. This works only for bots that honour robots.txt — malicious crawlers ignore it.
User-agent: MJ12bot Disallow: /
This page is being enriched with detail knowledge about MJ12bot.
🟢Active crawlerlast seen today · 2026-05-28
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