Startup Idea: SSL Certificate Management Software for Diverse Networks

Startup idea to develop a dedicated software that efficiently tracks SSL certificates across a diverse spectrum of services and servers. The software provides renewal alerts and randomly validates each server/service. A solution is sought that supports various environments, not limited to enterprise-only or Windows/IIS.

I work for an ISP in Systems Engineering. We currently use an in-house wiki to keep track of approximately 30 SSL certificates, including where it was purchased from, what servers it is used on, and when it expires. The ~30 certificates doesn't sound bad, until you factor in that about 10 of them are wildcards and therefore used on multiple services/servers; these 30 certificates cover a variety of services, such as LDAP, HTTP, mail, and a myriad of other functions, probably to the tune of 100-200 actual deployments.

It would be nice to have dedicated software to keep track of these and warn via email, SNMP, or some other mechanism at custom intervals that certificates need renewing. It would be even better if this could be set to randomly poll via the method used (LDAP, HTTPS, IMAP, etc) and make sure the certificate is good for that server/service. I have tried looking for solutions for this. Unfortunately, most of the options out there are for enterprise-only environments, and want to only work for Windows/IIS, or only track HTTP.

We're solving our problem now by manually tracking all these in a wiki, which is cumbersome and very prone to error.