SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
roonets.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for roonets.co.kr
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- www.roonet.ai
- Valid from
- Dec 16, 2025
- Valid until
- Jul 16, 2026 (expired 29 days ago)
- Public key
- RSA 2048-bit
- Serial
- 804F7DFE95879BEA1BAC372824EE8EBB
- SHA-256 fingerprint
- 03:49:CA:94:19:10:09:4F:73:3F:1A:43:A9:52:2E:74:86:2D:26:1C:25:F2:94:9B:27:C7:3B:71:36:1E:36:A6
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
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 12, 2026.
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DNS changes
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TLS certificate
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