Whoisology - Connected database of whois records and whois history
ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.
Bulk Whois API - Bulk Whois API is a provider of parsed WHOIS data in JSON with simple API, competitive pricing, top notch support, and more.
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
WhoisThisDomain - Domain name lookup tool that allows you to get information about domain registration from WHOIS server.
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems