SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ok-vise.org
SSL/TLS Certificate
SSL/TLS Certificate for ok-vise.org
Expired- Issued by (CA)
- Unspecified
- Subject
- localhost.localdomain
- Valid from
- Apr 11, 2023
- Valid until
- Apr 10, 2024 (expired 859 days ago)
- Public key
- RSA 2048-bit
- Serial
- 39F442FBDF657E41
- SHA-256 fingerprint
- C5:DC:FD:98:77:56:37:4C:E0:BD:87:41:75:67:63:72:E2:00:18:9E:75:99:7A:6D:51:2A:37:DD:02:BC:09:4F
- Chain
- localhost.localdomain
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Aug 2, 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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