웹 도구
Port Checker
Test if a TCP port is open on any host — check firewall rules, service availability, and connectivity
서버 조회 — 데이터가 저장되지 않아요
무료
광고 없음
계정 불필요
Check a Port
21 FTP
22 SSH
25 SMTP
53 DNS
80 HTTP
443 HTTPS
3306 MySQL
5432 PostgreSQL
6379 Redis
8080 HTTP Alt
Enter a host and port above to test connectivity. Click a common port to quick-check.