On Windows IIS, how does one set the cdn cache expiration time?

This article introduces how to set the cdn cache expiration time for Windows IIS. If you need it, refer to the following.

1. Open IIS Manager
2. Select the website you want to set and click Properties to open the site properties menu.
3. Click the HTTP header tab.
4. Click Enable content expiration

For example, set the expiration time to 30 minutes, and enter 30 in the expired items after this time period. The unit is minute.
Through the above operations, you can customize the CACHE time for the entire website. You can also set the CACHE time for a directory on the website, for example, when you select a site for the image directory, select an image folder, and then select properties. The subsequent operations are the same as those of 3-4.