Uptime monitoring
DNS monitors
Check that a DNS record resolves and returns the value you expect.
DNS monitors run a lookup against a hostname and report whether the record resolves. They catch propagation delays, misconfigured zones, and hijacked records before your users hit them.
Create a DNS monitor
- Open Uptime and click Create monitor.
- Pick DNS as the monitor type.
- Fill in:
- Host — the hostname to resolve (for example
example.com). - Record type — the record to query, such as
A,AAAA,CNAME,MX,TXT, orNS.
- Host — the hostname to resolve (for example
- Set the check interval and click Create monitor.
What "up" means
The monitor is up when the lookup resolves and returns at least one record of the requested type. A lookup that times out, fails, or returns no matching record puts the monitor in the down state.
Use DNS monitors alongside an HTTP monitor on the same host: the DNS check confirms the name resolves, and the HTTP check confirms the service behind it answers.