Monitoring DNS Records for Wildcard Values
Back in 2016, we added support for monitoring wildcard DNS records. Wildcard DNS records are used to serve requests for otherwise non-existent domain names. Today we’re pleased to announce that we’ve extended our support for using wildcards in DNS records monitoring. DNS Check now allows you to specify a wildcard (*) in place of some DNS record values, such as an A record’s IP address to indicate that any value is acceptable, but the record must exist.