Why Your Browser Might Show an Old Version of a Website
https://thestatusdesk.nexorafield.com/posts/why-your-browser-might-show-an-old-version-of-a-website
You load a site and it looks outdated, even though you know it was just updated. Chances are, your browser is serving you a cached version from its memory to speed things up. Caching stores static files locally, so your browser doesn't have to fetch everything again. But if the site changed that file or its expiration stamp, you get stuck with an old copy. A hard refresh—Ctrl+F5 on Windows or Cmd+Shift+R on Mac—forces your browser to dump its cache and grab the fresh version from the server.