SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ok-name.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for ok-name.co.kr
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.ok-name.co.kr
- Valid from
- Jan 30, 2026
- Valid until
- Mar 1, 2027 (216 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 3E6FE44F82033F282CF2D6F1CF8AA49F
- SHA-256 fingerprint
- 9C:B9:62:0B:ED:B1:31:A5:2C:FB:61:92:87:20:FD:D5:5E:CF:4C:7C:22:BB:13:58:1C:A9:76:A5:09:8F:9D:7B
- Chain
- Sectigo RSA Organization 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.
Never get surprised by ok-name.co.kr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ok-name.co.kr continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME 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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