The 423 status code is a custom status code of Tencent Cloud CDN. CDN will report a 423 error when it detects a loopback request. We recommend you check the following:
Note: if you use this method, we recommend you enable HTTPS configuration to force HTTPS redirection and change the origin-pull method to protocol follow. Otherwise, multiple redirects may occur. For the configuration steps, please see HTTPS Acceleration Configuration Guide.
This is caused by the IP access limit configured on the CDN Console, as shown below:
- IP access limit is designed to restrict how many times an IP is allowed to access a node within one second. If the limit is exceeded, a 514 error will be returned.
- Setting a low limit may affect the use of your business by normal high-frequency users. Therefore, please set a reasonable threshold. For more information, please see IP Access Limit Configuration.
Check the following: