This is a plain static HTML page

This file lives in the public folder and is served directly by the web server, byte-for-byte, with no React rendering or JavaScript hydration involved. View source to see there is no Next.js markup here—just plain HTML downloaded as-is.

Compare this to the React/Next.js pages, which render components on the server (or statically pre-render them) and then hydrate on the client so the page becomes interactive.