the original web architecture has sophisticated client-side caching built into it, all modern browsers support it: https://developer.mozilla.org/en-US/docs/Web

the original web architecture has sophisticated client-side caching built into it, all modern browsers support it: https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching the difference between constructing a string of JSON and a string of HTML is a round off error when compared with network connection costs and data store accesses, etc.