remove Postman

Author: duongau

articles/cdn/cdn-manage-expiration-of-blob-content.md

@@ -171,7 +171,7 @@ You can use the [Azure Storage services REST API](/rest/api/storageservices/) to
 
 ## Testing the Cache-Control header
 
-You can easily verify the TTL settings of your blobs. With your browser's developer tools, test that your blob includes the `Cache-Control` response header. You can also use a tool such as [Wget](https://www.gnu.org/software/wget/), [Postman](https://www.getpostman.com/), or [Fiddler](https://www.telerik.com/fiddler) to examine the response headers.
+You can easily verify the TTL settings of your blobs. With your browser's developer tools, test that your blob includes the `Cache-Control` response header. You can also use a tool such as [Wget](https://www.gnu.org/software/wget/) or [Fiddler](https://www.telerik.com/fiddler) to examine the response headers.
 
 ## Next Steps