Monitoring your resources is critical to ensure a reliable and highly available DNS delivery. provides a complete set of health checks to verify availability of all your applications and services. Health checks periodically contact your resources to make sure they are working as expected, optionally checking if they match your Service Level Agreement.


General purpose

  • Always up
  • ICMP
  • TCP

Web applications

  • HTTP

Secure connections

  • OpenVPN
  • SSH




  • IMAP
  • POP3
  • POP3S
  • SMTP


Sophisticated patterns can be verified by combining together several checks. Additionally, locally-generated load/performance indicators can be pushed to as passive checks providing full and unlimited customizability.