SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
filik.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for filik.co.kr
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- kowebpro.co.kr
- Valid from
- Dec 11, 2023
- Valid until
- Jan 10, 2025 (expired 674 days ago)
- Public key
- RSA 2048-bit
- Serial
- 943A168453A54BDFD825454B559C5119
- SHA-256 fingerprint
- 3D:42:49:DB:04:4A:20:89:50:7E:23:3F:0E:9A:07:34:3C:43:FF:E0:19:B3:F2:D4:34:AF:05:14:97:C9:10:86
- Chain
- Sectigo RSA Domain Validation Secure Server CA → 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
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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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