SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
udi.or.kr
SSL/TLS Certificate
SSL/TLS Certificate for udi.or.kr
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- brils.co.kr
- Valid from
- May 21, 2025
- Valid until
- May 21, 2026 (expired 86 days ago)
- Public key
- RSA 2048-bit
- Serial
- 86AD76842C2AC282C938CC141414C571
- SHA-256 fingerprint
- 50:A2:9F:8C:CA:59:50:CA:FD:0B:C5:36:1D:BF:C1:F2:A3:9B:22:59:49:A6:B9:3C:92:AA:BA:02:53:CD:E4:BB
- 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
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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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