SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ionia-e.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for ionia-e.co.kr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ionia-e.co.kr
- Valid from
- Jun 30, 2026
- Valid until
- Sep 28, 2026 (25 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05F074B5E82B14C6AAAC0774FF9123EEE33C
- SHA-256 fingerprint
- 36:2C:58:B3:51:11:2B:30:D3:13:9F:D4:BB:85:9D:F5:91:38:B4:BA:B8:91:84:09:92:1C:DF:C4:99:B7:31:89
- 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.
Never get surprised by ionia-e.co.kr's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ionia-e.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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