How do I optimize my website URLs for SEO marketing?

Use hyphens to separate words and keep it concise rather than creating complicated, long URLs that are hard for users to read and understand. Try to start your URL with your main keyword to make it more important and noticeable. 
Your URLs should always be written in lowercase, and this is because URLs are case-sensitive and using uppercase letters may result in misunderstandings and mistakes. To make your URLs shorter and easier to read, remove extra words like "and," "the," "of," etc.