docker
Docker container runtime
About this crawler
docker is a web crawler identified by the regular-expression pattern docker in the User-Agent request header. It is categorised as http-library. Use the regex above to detect, log, allow, or block docker traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
No block-rate data for this crawler.
Technical details
- Name
- docker
- Pattern
docker- Tags
- http-library
- Reference
- https://www.docker.com/
- Added
- 2026/05/09
- Instances
- 1 known sample(s)
Sample User-Agent strings
docker/19.03.8 go/go1.12.17 git-commit/afacb8b7f0 kernel/4.19.123-coreos os/linux arch/amd64 UpstreamClient(Docker-Client/19.03.8 \(linux\))
Block this crawler
robots.txt — disallow docker:
User-agent: docker
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} docker [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "docker") {
return 403;
}
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