(1) First check the reasons for the decline of Availability, all of which are 403Error. (2) 403Error indicates that it is not a script problem. If you check the corresponding URL and find that it is Element at the beginning of the homepage, an error will be reported. (3) Copy the URL and access it directly in the browser and find that there is still a 403.
The 403 problem is thrown by the server. This phenomenon also occurs when accessing directly. It means that there is no problem with Tingyun Monitoring and the customer needs to investigate the cause.