Create a status code expiration rule

Content Delivery Network (CDN) allows you to create status code expiration rules to expire static resources of specified file types or in specified directories. When a status code expires, the relevant static resource is deleted from the edge node. This topic describes how to create a status code expiration rule.

1. Log on to the Alibaba Cloud CDN console.
2. In the left-side navigation pane, click Domain Names.
3. On the Domain Names page, find the target domain name and click Manage.
4. In the left-side navigation pane of the specified domain, click Cache.
5. Click Status Code Expiration.
6. In the Create Expiration Rule dialog box, select Directory or File Extension, enter directories or file extensions, and enter status code and caching time pairs.
   • Create a status code expiration rule for static resources of specified file types or in specified directories.
     1. Click Create Rule.
     2. Select a static resource type: Directory or File Extension.

        Resource type	Description
        Directory	Enter a directory, which can be a full path. The directory must start with a forward slash (/), such as /directory/aaa. Status codes 2xx and 3xx are not cached.
        File Extension	Enter one or more file extensions. Separate multiple file extensions with commas (,), for example, txt,jpg. Asterisks (*) cannot be used as wildcard characters to match all file types. Status codes 2xx and 3xx are not cached.

        
     3. Click OK to add the expiration rule.

        You can click Modify or Delete in the Actions column to modify or delete a rule.

   • Create a status code expiration rule that prioritizes the origin cache policy.
     1. Click Create Rule.
     2. Enter status code and caching time pairs.
     3. Click OK.

        You can click Modify or Delete in the Actions column to modify or delete a rule.