Web design is the process of creating and coding a visually appealing and user-friendly website for a business or organization.
Ecommerce involves buying and selling products or services online. It typically involves setting up an online store and payment processing system to allow customers to browse and purchase products or services online.
SEO (search engine optimization) is the process of improving the visibility of a website in search engine results pages. It involves optimizing the website for relevant keywords and phrases to attract qualified traffic and improve search engine ranking.