Content compression and browser caching are both techniques used to improve website performance, but they work in different ways.

  • Content compression (like GZIP or Brotli) reduces the size of files—such as HTML, CSS, and JavaScript—before they are sent from the server to the user's browser. Smaller files mean faster load times and reduced bandwidth usage.

  • Browser caching, on the other hand, stores copies of static files (like images, scripts, and stylesheets) locally in the user's browser. On future visits, the browser loads these files from its cache instead of downloading them again from the server, which significantly speeds up repeat visits.

Together, these techniques help websites load faster and use server resources more efficiently.

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