HTML (Hypertext Markup Language) is a standard markup language used to create and structure content for the World Wide Web.
A Universal Product Code (UPC) is a graphic and numerical code printed on retail packages and is often referred to as a barcode.
ASIN is an acronym that stands for “Amazon Standard Identification Number.” When you visit a product page on Amazon’s website, the URL contains this 10-character number.
A 301 redirect is a permanent redirect that automatically sends users and search engines from one URL to another.