This document lists common codes and conventions used on websites, including: - The URL, which uniquely identifies the website location. - The homepage, which should tell visitors about the business within 3 seconds. - The masthead displaying the company logo and branding. - House style establishing consistent design elements like colors and fonts. - Navigation links that allow users to move within the site. - Text copy and main images used to convey information and set expectations. - Multimedia elements, ads, and use of white space for visual balance and organization.