clipped from: www.techno360.in 
This Award winning scanning tool for websites is supported by the security firm McAfee. It also offers a version that can be downloaded and installed on the PC, in conjunction with the web browser plug-in or addon of your choice.
This is the fastest of all that we had the opportunity to try.Its operation is more simple, just type the URL along with captcha code and get results immediately.
WOT is an extension(addon) - that is a small program - which can be added to Firefox or Internet Explorer.I think this one is best among all.
Each time you do a search or check a website, WOT shows you whether the site is reliable or not.. It will keep you safe from online scams, identity theft, spyware, spam, viruses and unreliable shopping sites.