SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
joong-il.com
SSL/TLS Certificate
SSL/TLS Certificate for joong-il.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- joong-il.com
- Valid from
- Jul 20, 2026
- Valid until
- Feb 3, 2027 (145 days remaining)
- Public key
- RSA 2048-bit
- Serial
- C3D040D27DE17520E9976DA4E086CCB3
- SHA-256 fingerprint
- 67:95:C0:5E:23:6A:B0:06:91:C8:55:03:9B:95:66:7F:7C:3D:D2:EE:2C:90:41:5C:A0:9B:0F:7A:4D:3E:A2:94
- 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.
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This is today's certificate. Turn on monitoring and we'll watch joong-il.com 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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