Domain-Monitor.io - Looking for the complete domain and website uptime monitoring solution? Domain Monitor keeps an eye on your website, cron, SSL and domain name 24/7 and will alert you through Email, SMS and web when something stops working.
DomainMOD - DomainMOD is an open source application written in PHP & MySQL used to manage your domains and other internet assets.
Domain Punch - Solutions for Tracking and Managing Domain Expiry Dates, Name Servers, A, CNAME, SSL, MX, SPF, DMARC, DKIM Records & More.
Domainer - Manage All Your Domains and Websites
Dominic.de - Dominic.de is a cloud-based purpose build software for the management of domain names and DNS.
Tough Domains - Tough Domains is platform that provides tools to manage internet domains, domain insights, and domain monetization.