Digital Stakeout - Provides a self-managed scanning solution to identify and help defend against vulnerabilities.
Edgeos - An on-demand security services platform for professionals who want to offer managed security services to their customers.
EventLog Scan - Scans event logs for high security events happening on your machine.
Firewall Test and Port Scan at AUDITMYPC - This online security audit is free, extremely fast and provides immediate results designed to promote security awareness.
HackerWhacker - Free Internet based security scanner site that will provide a report on what personal information is available to hackers over ones Internet connection.
It-sec - Free online security scan of ones computer, tests for open Netbios, Netbus, and Back Orifice.
MaxPatrol - Private company specializing in network information security
Perisec - Web-based multilingual vulnerability scanner with reporting, scheduling, alarming and policy management.
ScanAlert - Vulnerability testing and security verification. Provides real-time independent verification of a Web site's security.
ScannerX - A web based ASP of the Nessus scanning engine and proprietary programming and vulnerability assessment tools.
Security Innovation - Independent provider of application security services.
Security Point(R) Scanner - Analyzes a company's Internet security through the internet with their own SPScanner security tool.
SecurityMetrics, Inc. - Web based security services to detect and repair security vulnerabilities on multiple platforms. Internal and external security solutions, provides vulnerability assessment, and intrusion detection systems.
Xentinel Digital Security - Offers 'hacker free' website security certifications, in conjunction with the scanning services offered.
You Get Signal - AJAX utility to test the port forwarding configuration on your router. The site shows your external IP address and has the ability to identify open ports on your connection.