Static websites have fixed content and display the same information to every visitor. They are written primarily in HTML and present pre-defined, unchanging information. These sites are faster and simpler but lack interactivity.

Dynamic websites, on the other hand, generate content on the fly. They use server-side technologies (like PHP, Python, or Ruby) to fetch and display information based on user interactions, database queries, or other variables. Dynamic websites can personalize content for users, making them more interactive and adaptable.

In summary, static websites deliver fixed content, while dynamic websites generate content in real-time based on user input or other factors.