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Domain Locker
A self-hosted dashboard to track domain, DNS, and SSL certificate expiry with status checks and notifications.
Domain Locker is a self-hosted web app for tracking your domains and certificates in one place. It helps you avoid outages by monitoring expiry dates and basic domain/website status signals, and by surfacing upcoming renewals in a simple dashboard.
Key Features
- Dashboard for tracking domain expiration dates and time-to-expiry
- SSL/TLS certificate expiry monitoring for domains
- DNS and WHOIS-based domain metadata lookups (registrar/expiry where available)
- Status checks for associated websites (basic reachability/health signals)
- Configurable alerts/notifications for upcoming expirations
- Designed for managing multiple domains/services from a single UI
Use Cases
- Keep personal or homelab domains from expiring unexpectedly
- Track renewal windows for small businesses with multiple domains
- Monitor SSL certificate expirations to prevent HTTPS outages
Limitations and Considerations
- WHOIS/registrar data quality and availability varies by TLD/registrar and may be rate-limited
- Some checks depend on external DNS/WHOIS/HTTP reachability and can fail in restricted networks
Domain Locker is useful for anyone who owns multiple domains and wants a lightweight, centralized way to see what is expiring soon. It provides a practical safety net for domain renewals and certificate maintenance with a straightforward, self-managed setup.
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