SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kyung-bok.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for kyung-bok.co.kr
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- kyung-bok.co.kr
- Valid from
- Sep 8, 2026
- Valid until
- Mar 25, 2027 (142 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 7A8BA6F2C1241AE0B3A22AA4B9ED3697
- SHA-256 fingerprint
- 4F:82:CC:43:AC:CC:DE:A2:86:6D:86:C0:3A:0C:E5:DE:B8:5F:F2:0F:EE:B5:57:B3:39:E2:84:C5:5B:8B:3A:19
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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, CNAME, TXT 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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