Port Scanners and Security Testers Web Products

Symantec Security Check
Provides three tools. One performs an online security scan, the second provides a scan for viruses and the third can trace a potential attack. It is a free service created to help users understand their exposure to security intrusions and virus threats.
Price: 0.00
Security Metrics – Free Port Scan & Firewall Test
Can perform a home or business firewall test online.
Price: 0.00
Hackerwatch.org Port Scan
An on-line port scanner used to test your security.
Price: 0.00
FPort
Used to identify open ports on a computer and the associated applications.
Price: 0.00
Broadband port scan
Performs a security analysis of your connection by performing an online port scan and reporting the results to you.
Price: 0.00
BlackCode Security Scan
Searches for open ports in your firewall or accessable on your computer. this is a test to help you improve your computer or firewall security. This is an online port scanner and it can also be downloaded. It will also scan for trojan horses.
Price: 0.00
Security Auditor’s Research Assistant
A vulnerability scanner with a web based interface.
Price: 0.00
Audit your firewall or PC online
curity vulnerabilities that may leave a computer open to hackers and viruses. Visit the research center to find information on an email, web site or IP address. Works with any operating system.
Price: 0.00
TCPDUMP/LIBCAP
Provides the TCPdump utility which can be used to perform network monitoring. The LIBCAP tool is used for intrusion detection.
Price: 0.00
Port Explorer
Shows open ports on a computer and shows what applications have them open. It can also snoiff network packets and throttle network bandwidth.
Price: 30.00 US Dollars
Sygate Security Scan
Detects open, blocked, and closed ports and also checks for trojans. The scan is performed online within about 30 seconds.
Price: 0.00
PC Flank – Quick Test
Performs a port scan, checks for trojans, and checks to determine if your web browser is giving away information about you while you surf the internet.
Price: 0.00
WinDump: tcpdump for Windows
Provides the TCPdump utility for the Windows platform which can be used to perform network monitoring.
Price: 0.00
The Nessus Project remote security scanner
A program that can analyze your network and analyze its vulnerability to worms and other threats.
Price: 0.00
Qualys’ Free Browser Checkup
An online service that tests for internet browser security vulnerabilities. It can also fix problems or provide information about how to fix the problem.
Price: 0.00
Nmap – Free Stealth Port Scanner
Nmap (“Network Mapper”) is an open source utility for network exploration or security auditing. It was designed to rapidly scan large networks, although it works fine against single hosts.
Price: 0.00