NB

NINJA bot

scanner NINJA bot

NINJA web crawler for content discovery

About this crawler

NINJA bot is a web crawler identified by the regular-expression pattern NINJA bot in the User-Agent request header. It is categorised as scanner. Use the regex above to detect, log, allow, or block NINJA bot traffic in your web server, CDN edge rules, or robots.txt.

Block-rate · top 25k sites

0.065%
latest snapshot
2026-06-04
matched key: NINJA bot
2026-05-012026-06-040.11%

Technical details

Name
NINJA bot
Pattern
NINJA bot
Tags
scanner
Added
2020/03/16
Instances
1 known sample(s)

Sample User-Agent strings

NINJA bot

Block this crawler

robots.txt — disallow NINJA bot:

User-agent: NINJA bot Disallow: /

Apache .htaccess — return 403:

RewriteEngine On RewriteCond %{HTTP_USER_AGENT} NINJA bot [NC] RewriteRule .* - [F,L]

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "NINJA bot") { return 403; }
← back to all crawlers