SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
c-site.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for c-site.co.kr
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.c-site.co.kr
- Valid from
- Nov 20, 2025
- Valid until
- Dec 22, 2026 (102 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 395FB7E2B4B213289EB8FC6F
- SHA-256 fingerprint
- A8:D6:1A:56:A4:E4:CF:E1:54:65:7A:24:9F:8A:A2:DE:58:A4:B4:CD:E4:26:0D:AE:AB:33:D5:BD:DC:17:16:38
- Chain
- GlobalSign GCC R6 AlphaSSL CA 2025 → GlobalSign → GlobalSign
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by c-site.co.kr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch c-site.co.kr continuously, notifying you the moment anything moves across all three signals:
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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