I was excited when I first started trying it, but it failed to detect any/0 of the bad URLs I threw at it.
Most were Malicious Re-Directs and Exploits.
URLVoid, AVG Linkscanner/AVG Threatlabs, Dr. Web Online, Web Of Trust, McAfee Siteadvisor, Anubis, and even Norton Safe Web/Virus Total/Etc did better.
But today I see that the look and features of Comodo SiteInspector has/have improved, so I hope that its ability to detect Malicious Re-Directs and Exploits has improved as well.
I hope that y'all continue to improve Comodo SiteInspector and I hope that y'all maybe even make it into an Extension like Web Of Trust or something in the future and/or integrate its list of known Bad Websites into Comodo DNS because it is during pretty bad in the tests I have seen & done myself and/or maybe it can be part of a Web Shield for CIS and/or it can be integrated with CIMA.
Keep the improvements coming and get the Community involved if possible, and thank you for providing this service.