Sogou

search-engine Sogou

Sogou search engine web crawler bot

About this crawler

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

Block-rate · top 25k sites

0.59%
latest snapshot
2026-06-04
matched key: Sogou
2026-05-012026-06-040.88%

Technical details

Name
Sogou
Pattern
Sogou
Tags
search-engine
Reference
http://www.sogou.com/docs/help/webmasters.htm#07
Added
2012/05/13
rDNS suffixes
.sogou.com
Instances
3 known sample(s)

rDNS verification (FCrDNS)

Verify a request is genuinely Sogou with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.

Sample User-Agent strings

Sogou News Spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
Sogou Pic Spider/3.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)

Block this crawler

robots.txt — disallow Sogou:

User-agent: Sogou Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "Sogou") { return 403; }
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