Ecommerce footprints

I have a lot of websites that i would sort after following E-commerce platforms. Can some help me with the footprints for them?

WooCommerce:

Magento:

OpenCart:

Zen Cart:

PrestaShop:

Custom Cart:

OsCommerce:

Shopify:

BigCommerce:

VirtueMart:

WP e-Commerce:

Volusion:

Yahoo Store:

Ubercart:

Weebly eCommerce: