MJ12bot User-Agent & Blocking Rules
Operated by Majestic. Verify the official user-agent string and safety status for this bot. Use the tools below to run a live crawlability test and get copy-paste robots.txt rules to manage its access. Crawler info last updated on .
What is MJ12bot?
MJ12bot is the crawler for Majestic, a link intelligence tool. It builds a map of the internet for SEO backlink analysis.
Test if MJ12bot can access your URL
Enter URL to test if MJ12bot is allowed or blocked.
Is MJ12bot safe?
It is recommended to use caution with MJ12bot.
Caution bots may have legitimate uses but can be resource-intensive or used for competitive intelligence.
For more information about our safety badges, visit our documentation.
User-Agent String used by MJ12bot
MJ12botHow to block MJ12bot with robots.txt?
Add the following standard robots.txt rule to prevent MJ12bot from accessing your site.
User-agent: MJ12bot Disallow: /
What happens if I block MJ12bot?
Medium Impact
Blocking MJ12bot will prevent this SEO tool from analyzing your website. This may affect SEO audits, backlink tracking, or competitive analysis tools that use this crawler. Your search rankings will NOT be affected.
Common use cases for MJ12bot
Understanding how MJ12bot is typically used can help you make informed decisions about whether to allow or block it on your website.
- Analyzes website structure and SEO health
- Tracks backlinks and referring domains
- Monitors keyword rankings and competitor analysis
- Crawls sites for technical SEO audits
- Generates reports for SEO professionals