Koizumi Fumiya

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Indie developer building Certly — SSL, domain & DNS monitoring for teams that don’t want surprises. Based in Japan.

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CertlyKnow before your SSL, domain, or DNS breaks
Jul 2026

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Joined Product HuntJuly 4th, 2026

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24h ago

Certly - Know before your SSL, domain, or DNS breaks

Monitor SSL certificates, domain expiry, and DNS/DNSSEC across all your sites. Track every DNS record change and get alerted on Slack, email, or webhook before anything lapses — so you never find out from your customers.