3 ms·

Please elaborate...

• untog 14y ago
  There's a great example/explanation on the Facebook Developer blog: https://developers.facebook.com/blog/post/627/ https://developers.facebook.com/blog/post/627/ Basically, it's Last-Modified on steroids.
  • Vidart 14y ago
    In the link that you mentioned, ETags are produced and handled by application. There are no special needs in web-server support.
    • untog 14y ago
      Right... I was assuming that the OP wanted to know what ETags are, rather than their specific implementation in nginx.
      • zaph0d 14y ago
        Etags are useful for static assets as well.