TCP Ping - check TCP ports from the command line

PortCheck is a command line tool for Windows. It allows you to perform "TCP Pings". TCP Ping is actually not a correct term, as Ping is a fixed term for sending and receiving ICMP packets. PortCheck allows you to check whether a TCP port of a remote host answers to a TCP request or not. It is a small portable tool with a size of only 166 K.

TCP Ping to a remote host. Option -st displays date and time (timestamp). You can also log the output to a logfile.

The syntax:

PortCheck [-t] [-i] <hostname(s)> <port(s)>

Examples:

PortCheck MyServer 80 # single check

PortCheck -t MyServer 443 # continuous

Also possible:

PortCheck -t SRV-EXCH1,SRV-DB1 443 # multiple hosts

PortCheck -t SRV-EXCH1 25,443 # multiple TCP ports

PortCheck -t SRV-EXCH1,SRV-DB1 443,1521 # multiple hosts, multiple ports

PortCheck -t -st Fileserver1 445 # check TCP port 445 (SMB) with timestamp (-st)

If you are looking for a graphical TCP ping tool, you can have a look at Ping Tool 4.2. PingTool is a utility for system administrators and network admins. It displays the availibility and the TCP Ping response time of remote hosts in a GUI:

PingTool is a free graphical TCP port check software

PingTool highlights:

Graphical Ping tool with TCP port check (TCP ping)
Wake-on-Lan tool (magic packet)
Integrated Lan speed test tool (bandwidth)
Dashboard for difficult environments
Custom actions in the event of failure

You can also have a look at the article TCP Port check Powershell in Windows 11.

Table oft important TCP Ports:

TCP Port Number	Application
21	FTP
22	SSH
23	Telnet
25	SMTP
80	HTTP
110	POP3
135	WMI
139	NetBIOS
143	IMAP4
443	HTTPS
445	SMB
1433	MS Sql
1494	Citrix (ICA)
1521	Oracle
3389	RDP
5060	SIP

>>> TCP Ping Homepage

-----
Software: PortCheck
Category: TCP Ping for Windows / Check TCP ports Windows 11
Type: Command line (cmd)
Operating Systems: Windows 7 / Windows 8 / Windows 10 / Windows 11 / Windows Server 2008 / Windows Server 2012 / Windows Server 2016 / Windows Server 2019 / Windows Server 2022