Build an url scanner based on virus engines like clamav

Hi I want to create an online url scanner, that can scan an url and display information about any malware or viruses discovered. The results for the url will then be saved in a database. So the basics of the project are to have a site that can scan and display results about urls, plus store the results for displaying later. I have been looking at the open source clamav software but I am open to utilizing other engines as well if you have expertise in one. I already have the site design the final site will display a sites reputation looking at many factors, and this scan will be one of those. Thanks, Andy