SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for yplus.kr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- yplus.kr
- Valid from
- Jul 19, 2026
- Valid until
- Oct 17, 2026 (88 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 053BB03718A24CCAB72EF971EBAEF526C554
- SHA-256 fingerprint
- 38:7B:17:05:0C:35:A0:BF:5D:D2:71:13:3C:D2:8D:DE:C0:75:7F:A4:2B:C0:7C:28:61:76:A2:39:AC:4D:AC:E0
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.