What Are Ports
Ports are virtual doors on your computer. Each service uses a specific port. Web traffic uses port 80 (HTTP) and 443 (HTTPS). Email uses 25, 465, 587. Gaming uses various ports. Your router blocks incoming ports by default. Port forwarding opens specific ports for services like game servers or webcams.
Why Test Ports
Check if port forwarding works. Verify game servers are accessible. Troubleshoot connection issues. Test firewall rules. Ensure services are running. A closed port means the service cannot be reached from the internet. Open ports are necessary for hosting services.
Common Ports
Port 80 for web, 443 for secure web, 22 for SSH, 21 for FTP, 25 for SMTP, 53 for DNS, 3389 for RDP, 25565 for Minecraft, 3074 for Xbox Live, 27015 for Steam. Always close unused ports for security. Only open what you need. Our DNS speed test helps optimize your network further.