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Bot IP: 158.220.122.16

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.
Likely legitimate
Track-A-Bot Trust Score: 71/100
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

  • ℹ️ No /robots.txt request observed
  • ✅ No referrer (typical crawler behavior)
  • ⚠️ Many non-200/304 responses
  • 📌 Visits: 4
  • ⏱️ Age: 0h

Penalties

  • ✅ No major spoof pattern
  • ✅ No fingerprint fields
  • ✅ Cookies not enabled
  • ✅ No connection type
Total visits: 4 First seen: Mar 24th, 2024 11:41 AM Last seen: Mar 24th, 2024 11:41 AM
Known Hostname(s)
vmi2763572.contaboserver.net
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
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
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
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
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
First 5/6/25
Last 12/12/25
ident
16
3/2/25
12/12/25
ident 16 seen
First 3/2/25
Last 12/12/25
m08fnqhytir7
16
3/2/25
12/12/25
m08fnqhytir7 16 seen
First 3/2/25
Last 12/12/25
unknown
12
5/28/25
12/12/25
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
41,452
3/16/24
12/12/25
mj12bot.com/ 41,452 seen mj12bot.com
First 3/16/24
Last 12/12/25
www.majestic12.co.uk/bot.php?+ 3 seen www.majestic12.co.uk
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 publicly available information. According to recent logs, the bot accessed multiple pages on the site from IP address 158.220.122.16, using the user agent 'Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)' and the hostname 'vmi2763572.contaboserver.net'. Such visits are typically part of automated processes to gather data for search engines or analytics platforms. If these visits are unexpected or unwanted, consider reviewing your site's robots.txt file to specify crawling rules, monitoring access patterns for unusual activity, and implementing allow/block lists or rate limiting as needed.

What does mj12bot do?

mj12bot is an automated web crawler operated by Majestic, a company known for its web indexing and link intelligence services. The bot systematically scans websites to collect data about web pages and their interconnections, which is used to build search indexes and analyze link structures. The user agent string and reverse DNS information can help verify the identity of the bot. If further verification is needed, check the official documentation at http://mj12bot.com/ or perform a reverse DNS lookup on the IP address. Site owners can manage mj12bot's access using robots.txt directives or by configuring firewall rules.

Is mj12bot safe?

mj12bot is a legitimate crawler widely recognized in the web analytics and SEO industry. However, as with any automated traffic, it is important to verify the authenticity of the bot. Confirm the user agent and perform a reverse DNS lookup to ensure the IP address resolves to a domain associated with Majestic or mj12bot. Monitor server logs for abnormal request rates or patterns. If unwanted or excessive crawling is observed, consider updating robots.txt, applying rate limits, or blocking the IP address using firewall or web application firewall (WAF) rules. Regular monitoring helps maintain site performance and security.

This page provides a detailed lookup for the bot with the IP address of 158.220.122.16, 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.