SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ju-kai.com
SSL/TLS Certificate
SSL/TLS Certificate for ju-kai.com
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- jstcnet.com
- Valid from
- Dec 7, 2024
- Valid until
- Mar 7, 2025 (expired 510 days ago)
- Public key
- RSA 2048-bit
- Serial
- 04717B6DD2B15584CF8D281348F9D630DCD1
- SHA-256 fingerprint
- AC:48:69:CE:2E:6C:5A:55:78:D1:FF:7F:A2:35:5C:AD:81:BF:F1:2D:40:8A:A1:B4:26:C7:D2:89:8F:9E:2D:47
- Chain
- R11 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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