Don't the current monitor solutions do this? Nagios was doing this in 2005. A quick search shows dozens of providers. Hard to see the UVP here.
What I found lacking (especially for modern teams) was: - Multi-domain, multi-tenant tracking with clean dashboards, most tools either require scripting or feel like they’re stuck in 2005.
- Ownership context: who owns which cert, what service depends on it, and whether it’s internal, public, or handled by a vendor.
- Fast visibility for teams with fragmented infrastructure: CDNs, cloud load balancers, custom pipelines, etc.
So yeah, the core idea isn’t new, but the execution is built for today’s hybrid and messy realities. Think of it as Nagios built by someone who has had to explain expired certs to a customer at 6am.