Last-Modified, If-Modified-Since, Expires, use it or not?

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  • porn-update
    Confirmed User
    • Apr 2014
    • 423
    #1

    Last-Modified, If-Modified-Since, Expires, use it or not?

    As the title suggests, better use them or better not?

    Last-Modified
    If-Modified-Since
    Expires

    It applies to all? Or maybe some it is better to use them and others better not?

    Thanks for the answers
    Tags: None
    • Miguel T
      ♦ Web Developer ♦
      • May 2005
      • 12470
      #2
      What are you talking about?

      Full Stack Webdeveloper: HTML5/CSS3, jQuery, AJAX, ElevatedX, NATS, MechBunny, Wordpress

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        • sarettah
          see you later, I'm gone
          • Oct 2002
          • 14343
          #3
          The answer is Yes.

          Except when it is No.

          Or Maybe it is Maybe.

          .
          All cookies cleared!

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            • wankawonk
              Confirmed User
              • Aug 2015
              • 1018
              #4
              I'm only using Cache-Control on my sites. seems like pretty much every modern browser supports it.

                Comment

                • porn-update
                  Confirmed User
                  • Apr 2014
                  • 423
                  #5
                  And in htaccess?

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