Detects open TCP ports, running services (including their versions) and does OS fingerprinting on a target IP address or hostname.

The scanner allows you to easily map the network perimeter of a company, check firewall rules and verify if your services are reachable from the Internet. Based on Nmap Online, it performs accurate port discovery and service detection.





What are Network Ports?

Why should I use an Online Port Scanner?

Already configured and ready to run

Periodically upgraded

Has an easy-to-use interface over the complex command line parameters of Nmap

Gives you a useful report that you can share with management or stakeholders

Common TCP Ports

21 - FTP (File Transfer Protocol)

22 - SSH (Secure Shell)

23 - Telnet

25 - SMTP (Mail)

80 - HTTP (Web) 110 - POP3 (Mail)

143 - IMAP (Mail)

443 - HTTPS (Secure Web)

445 - SMB (Microsoft File Sharing)

3389 - RDP (Remote Desktop Protocol)

Our TCP Port Scanner with Nmap

Specify custom TCP ports to scan (1-65535)

Enable/disable service detection

Enable/disable operating system detection

Enable/disable host discovery

Do Traceroute

Network ports are the communication endpoints for a machine that is connected to the Internet. When a service listens on a port it can receive data from a client application, process it and communicate a response.Malicious client applications (ex. scripts, bots, malware) often exploit code found in the server software that let them get unauthorized access on the remote machine. This is one of the reasons why testing all ports is vital to achieving an in-depth security verification.Port scanning is part of the first phase of a penetration test and allows you to find all network entry points available on a target system. The port scan techniques are different for TCP and UDP ports , that is why we have dedicated tools for each one.The main advantage of using an online version/ of the Nmap port scanner versus using it on your local machine is that it gives you an external view of your systems as they are seen by any hacker from the Internet. If you do the same scan from your internal network you may obtain different results because of various firewalls and network restrictions. Furthermore, our port scanner is:According to the Nmap classification, these are the most common TCP ports:Theallows you to perform portscans with, easily configured from the web interface:Furthermore, you can scheduleto continuously monitor the attack surface of your network perimeter.Thechecks only for the most common Top 100 TCP ports. Service detection (-sV) is also enabled in this port scanning configuration and you will get the version of the running services. Try now a Free Port Scan to see a sample output.