URL design refers to the process of creating user-friendly and meaningful web addresses for websites. A well-designed URL is easy to read, remember, and share, which can enhance user experience and improve search engine optimization (SEO). Key elements include using clear keywords, avoiding unnecessary parameters, and maintaining a logical structure that reflects the content hierarchy of the site. Effective URL design also considers the length and format of the address. Shorter URLs are generally preferred, as they are easier to type and less prone to errors. Additionally, using hyphens to separate words instead of underscores can improve readability. Overall, good URL design contributes to better navigation and accessibility for users and search engines alike.