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MJ12bot

Operated by Majestic · SEO tools

Distributed crawler behind Majestic’s backlink index.

User-agent token
MJ12bot
robots.txt
Documented to honour robots.txt

Allow or block MJ12bot

By default every well-behaved crawler is allowed. To block MJ12bot specifically, add this to your robots.txt:

User-agent: MJ12bot
Disallow: /

Official Majestic documentation

Did MJ12bot read your content?

Quillly detects MJ12bot and every other crawler server-side when they fetch your published pages, and shows it in your analytics — so you can see exactly which AI picked up which post, and when.

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