Do you want to know if a website is running on EC2? Use this tool to figure it out quickly.
For the domain animoto.com, I found the following IP addresses:
75.101.139.86 - It's running on EC2! - PTR points to ec2-75-101-139-86.compute-1.amazonaws.com
75.101.155.123 - It's running on EC2! - PTR points to ec2-75-101-155-123.compute-1.amazonaws.com
Some EC2 sites: Some surprising sites that aren't running EC2:
- info.rightscale.com - apparently they only eat some of their own dogfood
- www.amazonaws.com