9418
Native Git protocol for unauthenticated repository access
Git Protocol
What is port 9418?
Port 9418 is used by the native Git protocol (git://) for clone and fetch operations. It is faster than HTTPS but has no authentication — anyone can read the repository. It is used by GitHub, GitLab, and self-hosted Git servers for public repositories. For authenticated write operations use SSH (port 22) or HTTPS (port 443) instead.
Quick checks
$
nc -zv example.com 9418
$
nmap -p 9418 example.com
$
telnet example.com 9418