ds9
Copyright Clearance Center licensing crawler
About this crawler
ds9 is a web crawler identified by the regular-expression pattern ds9 in the User-Agent request header. It is categorised as advertising. Use the regex above to detect, log, allow, or block ds9 traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- ds9
- Pattern
ds9- Tags
- advertising
- Reference
- https://data.dss.sps.copyright.com/docs/user_agent.html
- Added
- 2026/04/26
- Instances
- 1 known sample(s)
Sample User-Agent strings
ds9 2.004.ec2
Block this crawler
robots.txt — disallow ds9:
User-agent: ds9
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ds9 [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "ds9") {
return 403;
}
← back to all crawlers