All Products
Search
Document Center

Refresh and preheat

Last Updated: Aug 06, 2018

URL refresh

Concept: Forces the CDN node to refresh the content that is specified by file URLs from the origin site.

Time to take effect: 5 to 10 minutes.

Notes:

  • The specified URL must contain http:// or https://.
  • The same ID can only push and refresh up to 2000 URLs per day.
  • A batch refresh cache API is provided. For more information, see Refresh Cache API.

Directory refresh

Concept: Forces the CDN node to refresh the content that is specified by file directories from the origin site.

Time to take effect: 5 to 10 minutes.

Notes

  • Up to 100 refresh requests can be submitted per day.
  • The specified content must start with http:// or https:// and end with a slash (/).
  • A batch refresh cache API is provided. For more information, see Refresh Cache API.

102

URL push

Concept: Pushes the specified content to the CDN L2 node. When users access the content for the first time, a cache hit occurs, reducing pressure on the origin site.

Time to take effect: 5 to 10 minutes.

Notes:

  • The specified URL must contain http:// or https://.
  • The same ID can only push and refresh up to 2000 URLs per day.
  • The resource push time depends on many factors, such as the number of push files submitted by users, file size, origin site bandwidth, and network conditions.
  • A batch resource push API is provided. For more information, see Resource Push API.