The renewal notice always seems to land in an inbox nobody checks anymore, so Domain Monitor tracks every domain you own from your own server and warns you long before each expiry date arrives. It pulls expiration dates and registrar details automatically through WHOIS and RDAP across more than 1,400 supported TLDs, keeping the whole portfolio current without anyone remembering to look. Add domains one at a time or import them in bulk, group them with tags and watchlists, and let scheduled cron checks refresh the data on their own. Alerts escalate on your schedule, at 60, 30, 21, 14, 7, 5, 3, 2, and 1 day before expiry, and arrive through email, Telegram, Discord, Slack, Mattermost, Pushover, or webhooks, routed by notification groups so the right people hear about the right domains. Each domain also gets tabbed views for its DNS records, SSL certificate validity, billing notes, notification history, and raw WHOIS output, with per-domain toggles for DNS and certificate monitoring. The dashboard surfaces what expires soon, how domains distribute across registrars, and whether every domain is actually covered by an alert channel. Multiple users get their own accounts with two-factor authentication, tracked sessions, and an in-app notification center. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.