Open Port Checker Agent

Open Port Checker Agent – Scan Open Ports on Any IP or Domain

Open Port Checker Agent is a fast and reliable online tool that helps users check which network ports are open, closed, or filtered on a specific IP address or domain. Ports act as communication endpoints for services like websites, email servers, remote access, and applications, making port visibility essential for both performance and security.

Open Port Checker Agent works directly in the browser and allows users to scan custom ports or common ports such as 21, 22, 80, 443, 3306, and 3389 without requiring login, registration, or software installation. It supports basic TCP and UDP port testing to determine whether a service is reachable from the public internet.

Why Use Open Port Checker Agent?

Open ports can indicate active services, misconfigurations, or potential security risks. This tool helps users quickly verify port availability, validate firewall rules, and confirm port forwarding setups on routers or servers.

By scanning ports, users can troubleshoot connectivity issues, ensure required services are accessible, and identify unnecessary open ports that may expose systems to threats. The tool is suitable for both technical users and beginners who want quick visibility into network behavior.

How Open Port Checker Agent Works

When a domain or IP address is entered, the tool sends network requests to the specified ports and analyzes the responses. Each port is classified as open, closed, or blocked based on how the target system responds.

Users can manually enter specific port numbers or scan a list of commonly used ports associated with web servers, databases, email services, remote access, and gaming applications.

Common Use Cases

• Checking if web server ports like 80 or 443 are accessible
• Verifying SSH, FTP, or database port availability
• Testing port forwarding on home or business routers
• Troubleshooting application connectivity issues
• Performing basic security and firewall checks
• Auditing exposed services on servers or networks

Frequently Asked Questions

What is an open port?

An open port is a network port that is actively accepting connections from external systems.

Is Open Port Checker Agent free to use?

Yes, the tool is completely free and browser-based.

Can I scan custom ports?

Yes, you can manually enter any port number you want to check.

Does this tool scan my local computer?

No, it scans the public IP address or domain you provide.

Are open ports a security risk?

Open ports can be risky if unnecessary or unsecured, so regular checks are recommended.

You can also explore other network, IP, and security tools available on AIBoostX for deeper diagnostics and monitoring.