SEO & backlink crawlers
MJ12bot
Majestic's distributed crawler that maps link relationships between websites for the Majestic Site Explorer backlink index; it does not cache page content.
Dossier
- Operator
- Majestic
- Documentation
- mj12bot.com
- robots.txt token
MJ12bot- Feeds
- SEO backlink index
- Follows robots.txt
- Yes, per its documentationDocs: obeys robots.txt and Crawl-Delay (up to 20 s); 403 on robots.txt treated as disallow all.
- How to verify
- No published method
- Names in our logs
mj12bot- Researched
- 23 Oct 2026
Observed on New Runtime
Baseline 2026-10-23 · 93-day window · loading live numbers…
- Requests
- 4,177
- Days active
- 48 / 93
- First seen
- 23 Jul 2026
- Last seen
- 23 Oct 2026
Regularother_bot
Identity check claimed vs verified
- not verifiable167 reqprovider not published
What it reads crawler journeys · current window
- Content pages44
- Feeds & discovery30
- Machine-consumption0
41 unique materials · 50 canonical pages
Enters at · 7 days
Leaves from · 7 days
Sources
- mj12bot.commj12bot.com/