FAQ about key domain name monitoring
How is key domain name monitoring different from self-deployed Ping monitoring?
The two services focus on different areas. Ping monitoring checks if a server's IP address is reachable. Key domain name monitoring focuses on the security and health of the DNS parsing path. It can detect issues that Ping monitoring misses, such as:
DNS hijacking: The domain name can be successfully pinged, but its resolved IP address has been maliciously altered.
Regional parsing failures: The server is running normally, but users in a specific region cannot retrieve the correct IP address because of local DNS issues. This causes access failures.
Degraded parsing performance: The parsing process takes too long, which causes slow website loading for users.
Key domain name monitoring ensures the correctness, security, and performance of DNS parsing from the source. It can supplement Ping monitoring.
What notification methods does key domain name monitoring support?
It supports multiple notification methods, such as email, text messages, and Webhook. You can configure one or more methods to fit your team's emergency response procedures.
How is key domain name monitoring billed?
Key domain name monitoring uses a pay-as-you-go billing method. For more information, see Product Billing.
Service activation issues
"Purchase failed. You have reached the maximum purchase limit." error
This message indicates that the pay-as-you-go service for Alibaba Cloud DNS is already activated for the current account. No further action is required. You can return to the relevant feature page to start using the service.
RAM user receives a "no permission" error after clicking Buy Now
Cause: The Resource Access Management (RAM) user does not have the required permissions to subscribe to the service.
Solution: You can log on to the RAM console with your Alibaba Cloud account and grant the AliyunBSSOrderAccess access policy to the RAM user.