ICC-Crawler

academic ICC-Crawler

ICC web crawler for language research

About this crawler

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

Block-rate · top 25k sites

2.0%
latest snapshot
2026-06-04
matched key: ICC-Crawler
2026-05-012026-06-042.7%

Technical details

Name
ICC-Crawler
Pattern
ICC-Crawler
Tags
academic
Reference
https://ucri.nict.go.jp/en/icccrawler.html
Added
2018/02/28
Instances
1 known sample(s)

Sample User-Agent strings

ICC-Crawler/2.0 (Mozilla-compatible; ; http://ucri.nict.go.jp/en/icccrawler.html)

Block this crawler

robots.txt — disallow ICC-Crawler:

User-agent: ICC-Crawler Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "ICC-Crawler") { return 403; }
← back to all crawlers