SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
centynova.app
SSL/TLS Certificate
SSL/TLS Certificate for centynova.app
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- centynova.app
- Valid from
- Aug 23, 2026
- Valid until
- Nov 21, 2026 (64 days remaining)
- Public key
- RSA 3072-bit
- Serial
- 064BA7A7307B2B5BE7FF95A93F0E27797C16
- SHA-256 fingerprint
- 04:55:27:CB:22:28:24:B8:81:7D:D6:3A:48:A0:7D:76:1E:42:01:D0:DA:35:56:F9:39:85:DD:13:3B:9A:33:25
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 17, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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