Static suits content that doesn't change per user: a brochure site, a portfolio, a blog. Because the pages are ready in advance, they load fast, cost little to host, and are hard to break. Modern tools can generate large static sites automatically from your content.
Dynamic is necessary when the page depends on who's viewing or on live data: logged-in accounts, real-time prices, search results. Many modern sites blend both, serving static pages where they can and switching to dynamic only where it's needed.
Updated July 2026