Bot IP: 37.187.94.3
Bot Name: MJ12bot
MJ12bot is a web crawler operated by Majestic, used primarily for building a large-scale web index for SEO and link analysis.
Verified bot
Track-A-Bot Trust Score: 95/100
95
score
0255075100
Why Track-A-Bot rated this IP (tap to expand)
Identity
- ✅ Marked as bot traffic
- ✅ Bot name present
- ✅ User-agent matches bot name
- ✅ User-agent includes identity link/email
Hostname
- ✅ Hostname observed
- ℹ️ Hostname does not resemble bot name
- ℹ️ Hostname status not verified
- ✅ No hostname mismatch flags
Behavior
- ✅ Requested /robots.txt
- ✅ No referrer (typical crawler behavior)
- ✅ Mostly 200/304 responses
- 📌 Visits: 234
- ⏱️ Age: 15142h
Penalties
- ✅ No major spoof pattern
- ✅ No fingerprint fields
- ✅ Cookies not enabled
- ✅ No connection type
Total visits: 234 First seen: Mar 21st, 2024 8:33 PM Last seen: Dec 12th, 2025 7:23 PM
Known Hostname(s)
ns3390790.ip-37-187-94.eu
Known User Agent(s)
Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)
Known Accepted Language(s)
en
Known Accepted Encoding(s)
br,gzip
Common User-Agent Tokens
These are identifiers found inside user-agent strings we observed for mj12bot.
Token
Seen
First seen
Last seen
mj12bot/v1.4.8
32,219
3/16/24
12/12/25
mj12bot/v1.4.8
32,219 seen
mj12bot/v1.4.8
32,219 seen
First
3/16/24
Last
12/12/25
mj12bot/v2.0.0
4,134
2/13/25
12/12/25
mj12bot/v2.0.0
4,134 seen
mj12bot/v2.0.0
4,134 seen
First
2/13/25
Last
12/12/25
mj12bot/v2.0.2
2,056
5/22/25
12/12/25
mj12bot/v2.0.2
2,056 seen
mj12bot/v2.0.2
2,056 seen
First
5/22/25
Last
12/12/25
mj12bot/v2.0.4
1,929
8/13/25
12/12/25
mj12bot/v2.0.4
1,929 seen
mj12bot/v2.0.4
1,929 seen
First
8/13/25
Last
12/12/25
mj12bot/v2.0.1
1,117
5/6/25
12/12/25
mj12bot/v2.0.1
1,117 seen
mj12bot/v2.0.1
1,117 seen
First
5/6/25
Last
12/12/25
ident
16
3/2/25
12/12/25
ident
16 seen
ident
16 seen
First
3/2/25
Last
12/12/25
m08fnqhytir7
16
3/2/25
12/12/25
m08fnqhytir7
16 seen
m08fnqhytir7
16 seen
First
3/2/25
Last
12/12/25
unknown
12
5/28/25
12/12/25
unknown
12 seen
unknown
12 seen
First
5/28/25
Last
12/12/25
Identity Links
These are URLs we observed in association with mj12bot (often used as an identity, help, or policy link).
URL
Seen
First seen
Last seen
First
3/16/24
Last
12/12/25
First
8/1/25
Last
8/1/25
Bot FAQ for this IP
Why is mj12bot visiting my website?
mj12bot is a web crawler that visits websites to collect and index information for search and analysis purposes. The recent activity from IP address 37.187.94.3 shows requests to multiple URLs on this site, all using the user agent string 'Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)' and resolving to the hostname ns3390790.ip-37-187-94.eu. Such visits are typically automated and intended to gather publicly available data. If you want to verify the legitimacy of these visits, consider checking the reverse DNS for the IP, reviewing the user agent string, and consulting the official mj12bot website for their crawling policies. To manage or restrict access, update your robots.txt file, implement rate limiting, or use firewall rules as appropriate.
What does mj12bot do?
mj12bot is an automated web crawler operated by Majestic, a company known for building web link intelligence and search indexes. The bot systematically scans websites to collect data about web pages and their interconnections, which is used for SEO analysis and backlink research. The user agent and hostname information in the recent visits match the typical identifiers for mj12bot. Website owners can verify these details by performing a reverse DNS lookup on the IP address and comparing the user agent string. To control mj12bot’s access, review the bot’s documentation for robots.txt directives, monitor server logs for unusual activity, and consider adding the bot to allow or block lists as needed.
Is mj12bot safe?
mj12bot is a widely recognized web crawler and is generally considered legitimate when it follows standard crawling practices. However, as with any automated traffic, it is important to verify authenticity and monitor for excessive or unwanted activity. The IP address 37.187.94.3 uses a hostname and user agent consistent with mj12bot, but further verification can be done through reverse DNS checks and by consulting the official mj12bot documentation. To mitigate potential issues, use robots.txt to set crawl preferences, implement rate limiting to prevent server overload, monitor access patterns, and apply web application firewall (WAF) rules if necessary. Blocking or allowing mj12bot should be based on your site’s needs and traffic impact.
This page provides a detailed lookup for the bot with the IP address of 37.187.94.3, based on real-world traffic observed across websites using Track-A-Bot software. Use this information to verify whether activity from this IP belongs to a legitimate search engine crawler, or to analyze bot behavior on your website.