DNS record monitoring

A DNS check queries the resolver you select for a domain and record type. It reports resolution failures and response time from the selected monitoring locations.

Query

Enter the domain to resolve, the DNS resolver's address and port, and Resource Record Type. For example, query the A record for example.com using your DNS server on port 53. Choose the record type your service depends on.

The check validates resolution. It does not provide a field for asserting a particular returned IP address. If it fails, compare the domain, record type and resolver response from the affected agent's network.

Create the check

1. Open Dashboard → Add check and select this check type.
2. Enter a recognizable name, complete the target fields above and select locations under Run checks from.
3. Click Next. On Settings, set the check interval and request timeout in seconds, retries and, if needed, a response-time threshold in milliseconds. A threshold of 0 disables slow-response warnings.
4. On Notifications, choose saved channels, priority and an optional runbook. Set the check group, description and enabled state.
5. Click Create check and verify a fresh result from each selected location.

See the illustrated check wizard, notification setup and result guide.