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Port Scanner Pro

Scan only systems you own or are authorized to test.

fetch my ip

Common Ports

Select commonly used services to quickly build a custom port scan.

Local scan history

Saved only in this browser. Nothing is sent to the server for storage.

Your completed scans will appear here.

Port Scanner Pro

Port Scanner Pro is a free online tool for checking TCP and controlled UDP ports on a domain or IP address. It helps identify accessible services, response times, common protocols, and potential exposure.

Use the scanner only on systems you own or are authorized to test.

Port Scanner Features

  • TCP and UDP: Check TCP ports and selected UDP services.
  • IPv4 and IPv6: Scan supported IPv4 and IPv6 addresses.
  • Port Presets: Quickly scan Top 20, Top 100, or Top 1000 ports.
  • Custom Ports: Enter individual ports or ranges such as 22,80,443 or 8000-8100.
  • Light, Standard, and Deep: Choose between quick scans and detailed TCP coverage.
  • Service Detection: Identify common services and available banners.
  • HTTP and HTTPS: Detect web services and available response information.
  • TLS Information: Inspect available HTTPS certificate information.
  • Risk and Confidence: Review risk classifications and scan confidence indicators.

Scan Modes

  • Light: Fast check of common ports.
  • Standard: Broader scan of commonly used ports.
  • Deep: Detailed TCP scan that can cover ports 1–65535.

How to Use Port Scanner Pro

  1. Enter a domain name or IP address.
  2. Select a scan mode and port preset.
  3. Choose a timeout and scanning options.
  4. Add custom ports if required.
  5. Start the scan and review the live results.

Understanding Scan Results

The scanner reports the observed state of each tested port along with available service, response time, risk, and confidence information.

  • Open: A service appears to be accepting connections.
  • Closed: The host responded but no service was accepting the connection.
  • Filtered: Filtering, firewall behavior, or timeout prevented a definitive result.

Additional Network Information

Port Scanner Pro can also provide DNS and reverse DNS information, service identification, banners, HTTP details, HTTPS detection, TLS information, response times, risk classification, and security recommendations when available.

Scan Reports

After scanning, you can review the results, filter and sort ports, copy individual values, and use the available report options to print or save results as PDF, JSON, or CSV.

Frequently Asked Questions

Is Port Scanner Pro free?

Yes. Port Scanner Pro is available as a free online port scanning tool.

Can I scan all ports?

Yes. Deep mode can scan the full TCP range from 1 through 65535.

Can I scan a domain or IP address?

Yes. You can enter either a domain name or a supported IPv4 or IPv6 address.

What does an open port mean?

It means the scanner received evidence that a service is accessible on the tested port. An open port does not automatically mean the service is vulnerable.

Does an open port mean a server is hacked?

No. An open port only indicates that a service appears to be accessible. The service and its configuration should be reviewed separately.

Is this a vulnerability scanner?

No. Port Scanner Pro focuses on port accessibility and service discovery. A dedicated vulnerability scanner performs additional security checks.

Responsible Use

Only scan systems that you own or have explicit permission to test. Port scanning can generate network traffic and may be logged by firewalls, hosting providers, or network administrators.