MJ12bot

What is MJ12bot?

About

MJ12bot is Majestic's web crawler that maps link relationships between websites to build a comprehensive link graph for SEO analysis, providing backlink data and domain authority metrics without caching personal content. You can see how often MJ12bot visits your website by setting up Dark Visitors agent analytics.

Expected Behavior

SEO (Search Engine Optimization) crawlers do not adhere to a fixed visitation schedule for websites. The frequency of visits varies widely based on several factors, including the search keywords it ranks for, and how many other websites link to it.

Type

SEO Crawler
Discovers search engine optimization insights

Detail

Operated By Majestic
Last Updated 11 minutes ago

Insights

Top Website Robots.txts

6%
6% of top websites are blocking MJ12bot
Learn How →

Country of Origin

France
MJ12bot normally visits from France

Global Traffic

See All Global Bot & LLM Insights →

The percentage of all internet traffic coming from SEO Crawlers

Top Visited Website Categories

Pets and Animals
Books and Literature
Health
Hobbies and Leisure
Shopping
Get These Insights for Your Website
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Robots.txt

Should I Block MJ12bot?

Probably not, especially if you benefit from an SEO service yourself. However, you might choose to block them if you're concerned about things like server resource usage.

How Do I Block MJ12bot?

⚠️ Manual Robots.txt Edits Are Not Scalable
New agents are created every day. Instead, serve a continuously updating robots.txt that blocks new agents automatically.
Set Up Automatic Robots.txt

You can block MJ12bot or limit its access by setting user agent token rules in your website's robots.txt. Set up Dark Visitors agent analytics to check whether it's actually following them.

User Agent String Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/) 
# robots.txt
# This should block MJ12bot

User-agent: MJ12bot
Disallow: /

References