WebInspector (SiteInspector) already integrated with Comodo Secure DNS system. DNS gets a feed of unsafe domains from WI and special group of analysts control this process.
But there is a difference between Secure DNS and WebInspector protection. Some domain can provides malicious links or links to malware files, but they can't be blocked by DNS.
E.g. popular service "http://bitly.com/
" provides a lot of malicious links or "https://rapidshare.com/
" provides a lot of links to malware files, but if Comodo DNS block domains "bitly.com" or "rapidshare.com" users will complains.
But WebInspector can check concrete URL for your protection.