It's a recognition of security offenses major information technology worldwide, so you need not worry. I usually see Developer mostly in Cambodia has created a program to share to everyone, but he did not have precise control to comprehensive of its application, but before sharing to those users and the masses, especially that is the safety of use of the application.
So, whether you are a developer or not, if you do not already know this website, you need to know to avoid attacks from viruses or other Shell code embedded from hackers. It can scan for viruses from any files that you want to scan any website and you do not trust.
Overall, it is not a website that can prevent and can scan for viruses, one hundred percent, but it works, so to find other viral programs, files, etc. through their size page or https://www.virustotal.com/en/.
*** How to use: Website upper> Copy link Link or upload your files (limited to 128MB)> click the Scan It! Them.