SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
taenamholdings.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for taenamholdings.co.kr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- taenamholdings.co.kr
- Valid from
- Jul 1, 2026
- Valid until
- Sep 29, 2026 (47 days remaining)
- Public key
- EC 256-bit
- Serial
- 05C36C683BE9500DBFBECCB5EA87384E2BCD
- SHA-256 fingerprint
- CC:C1:34:FF:79:E0:0A:03:24:1A:3B:C3:89:68:71:95:1C:D8:BE:F3:43:86:AB:07:08:40:67:0D:7D:04:09:D4
- Chain
- YE2 → Root YE → ISRG Root X2 → 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
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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