I like how compatible it is with the different operating systems that exist, the monitoring of our network is very good, it is intuitive, it identifies vulnerabilities in the different devices connected to our network, the detection is very fast, it is a system that facilitates the detection of problems in our network.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
intoDNS - IntoDNS checks the health and configuration and provides DNS report and mail servers report.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
MxToolBox - All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.
Paessler PRTG - An advanced network monitoring solution to monitor network up/downtime, traffic and usage.
SolveDNS - SolveDNS works to check your name servers, a records, and mail servers, SOA records for errors, consistency, efficiency and speed using several DNS tests.