Amazon Route 53 - Amazon Route 53 is a highly available and scalable DNS web service.
ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.
GoDaddy Premium DNS - Sell your domain name in the Premium Domain Names section of the domain search page of the world's largest Domain Name Registrar - GoDaddy.
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems
Cloudflare DNS - Install the free app that makes your phone’s Internet more fast, private, and reliable.
Nagios - Complete monitoring and alerting for servers, switches, applications, and services