Important Note

This tutorial assumes you have already created a Pull Zone or a Push Zone.

  1. Cache Control

    The Cache control header option is used to apply a expiry time for your Push Zone files, so that the end-user/browser will keep it cached for a time defined in a provided box called “Expires Header.” You can choose the appropriate time for the value of the cache control header (defined in Hour(s) or Day(s)), and the system will calculate the number of seconds that your desired value stands for, then append it via the max-age header.

    In order to verify that this header is applied correctly, you can run following “curl” command on an example file which will display the final max-age value:

    ~$ curl -I
          HTTP/1.1 200 OK
          Date: Thu, 18 Jul 2013 12:34:56 GMT
          Content-Type: image/png
          Content-Length: 12345
          Last-Modified: Thu, 10 Jul 2013 12:12:12 GMT
          Connection: keep-alive
          Server: NetDNA-cache/2.2
          Expires: Fri, 19 Jul 2013 12:34:56 GMT
          Cache-Control: max-age=86400
          Accept-Ranges: bytes
  2. Edge Settings

    • Gzip compression will be enabled for certain files in order to reduce the files sizes for faster delivery. If you hover your mouse over this option you can see file types to be compressed.
    • Content Disposition is used to force the end-user/browser download all files, as if the user had chosen the “save file as” dialog.

  3. Custom Domain Settings

    This is special section where you can add your custom domains (to a maximum of 7) for which you have created a DNS CNAME record pointing to your temporary CDN URL (

  4. Delete Zone
    This is fairly self-explanatory. However, there is a useful tip: After you delete your zone you can’t use same name to create a new one. Our internal statistics require us to keep old names, and because of this you can’t use same name twice.