Certificate Transparency search that groups related certificates

Show HN: Certificate Transparency search that groups related certificates

Operating in show hn launch, Certificate Transparency search that groups related certificates operates.

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I've been working on a certificate monitoring SaaS for a while, and decided to create a free Certificate Transparency search tool as a way to hopefully get some more backlinks and traffic.The main difference from other CT search tools is that it groups related certificates together. My goal was to make it easier to get an overview of what exists for a domain, and easier to spot certificates that might have been forgotten about. It's usable on mobile but looks best on a laptop/desktop.I'm pretty happy with the result and I hope that it can be genuinely useful to some. I'd appreciate any feedback!

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Website: certobserver.com/ct-search