The North American Die Casting Association uses a Thawte SSL Web Server Certificate to offer secure communications.  When you see the logo below, all data to and from the site is encrypted. You can click on the logo to see the certificate's details.

You can also view the site's digital certificate directly by clicking on the gold padlock on the bottom right of the screen that appears when you are ordering or registering on the site to bring up details of the SSL certificate.