Port Scanner

The port scanner will scan ports of a public domain or IP address and see if a connection can be established.

<

Documentation

This tool looks for open ports and is helpful for making sure that your firewall rules are working properly. Perhaps you accidentally left MySQL open to the outside world, or accidentally forgot to open up HTTPS. The port scanner will let you know!

To start, enter an IP or domain.  By default, the ports below are scanned.  If you do not see the port you're looking for, you can add it into the input box that appears above the results.

Default ports scanned:
 
  • 21 - File Transfer Protocol (FTP)
  • 22 - Secure Shell (SSH)
  • 23 - Telnet
  • 25 -  Simple Mail Transfer (SMTP)
  • 69 - Trivial File Transfer (TFTP)
  • 80 - World Wide Web HTTP
  • 110 - Post Office Protocol - Version 3 (POP3)
  • 135 - DCE endpoint resolution (EPMAP)
  • 139 - NETBIOS Session Service
  • 143 - Internet Message Access Protocol (IMAP)
  • 389 - Lightweight Directory Access Protocol (LDAP)
  • 443 - HTTP protocol over TLS/SSL (HTTPS)
  • 1433 - Microsoft-SQL-Server
  • 2049 - Network File System (NFS)
  • 3306 - MySQL Database
  • 3389 - MS WBT Server
  • 5060 - SIP
  • 5432 - PostgreSQL Database
  • 8080 - HTTP Alternate
  • 8443 - HTTPS Alternate

NOTE: Since this tool runs from our servers, you cannot scan local networks. As long as the IP or host is publicly available, you can scan it.

Keep in touch with Experts Exchange

Tech news and trends delivered to your inbox every month

Enjoyed this tool?

Join our community for more IT solutions.

Join Now
Your Tool Here

Have a request or an idea for a tool you would like to see here?

More Tools

  • Useful if you need to troubleshoot a network, or find the origin of an IP address. Gives you information about an IP address or hostname, such as owner information and geographical origin.
  • An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.
  • A PHP and Perl based system to collect and display usage statistics from PostgreSQL databases.
  • Lets you know if our servers can access a website.  Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.
  • Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.
  • The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.
  • ZipGrep is a utility that can list zip archives of various kinds, including .zip, .war, .ear, .jar and so on. It can also search (to the deepest level of archive nesting) inside the archive for patterns of text without the need to extract the archive's contents.