Cache images and CSS files in a MVC.Net project

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Dev_Mega

• December 08, 2015 13:35

In a MVC.Net project, how is it possible to only cache images and CSS files using Fastly?

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  Justin

  • December 08, 2015 16:12

  In the Fastly configuration for the service you can add a condition targeting only certain file extensions that will make all other requests PASS. If they PASS they won't be cached in our CDN.

  For example if you create a request setting with the 'Action' set to 'Pass' and then add a condition to it that applies only if req.url.ext ~ "(css|gif|jpg|png)" that will enable what you're looking for. Feel free to amend the list of file extensions.

  Here's a doc page on creating the setting

  https://docs.fastly.com/guides/vcl/understanding-the-different-pass-action-behaviors

  (you need the first section -- 'Using a request setting')

  and one on creating a condition

  https://docs.fastly.com/guides/conditions/using-conditions

  Once you've done this you should ensure you're caching the images and CSS for as long as possible. Check this page out for more info https://community.fastly.com/t/suggestions-for-better-caching/250

  Let us know if you need assistance determining how much things are caching.

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