SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
d-nation.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for d-nation.co.kr
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- d-nation.co.kr
- Valid from
- Apr 21, 2026
- Valid until
- Nov 5, 2026 (46 days remaining)
- Public key
- RSA 2048-bit
- Serial
- D256B9876420133703E4448AF0853549
- SHA-256 fingerprint
- FF:74:A7:48:5F:7E:5B:BF:B8:C8:A2:C8:68:45:7E:76:1D:C8:28:D2:AD:86:BB:08:18:CA:4C:4D:B3:FF:5A:FD
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → 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 d-nation.co.kr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch d-nation.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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