SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gsp-korea.com
SSL/TLS Certificate
SSL/TLS Certificate for gsp-korea.com
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- koweb.co.kr
- Valid from
- Jan 28, 2022
- Valid until
- Jan 28, 2023 (expired 1297 days ago)
- Public key
- RSA 2048-bit
- Serial
- AE7A65B97E06380271F1DD5E91C6180B
- SHA-256 fingerprint
- 87:95:C7:E0:73:BD:2F:0D:D8:47:72:E4:8B:2E:F3:62:2C:36:4D:2A:32:3F:67:55:E3:3D:02:3E:54:31:E2:5C
- 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.
This certificate has been served since Aug 2, 2026.
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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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