SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
que.co.kr
SSL/TLS Certificate
SSL/TLS Certificate for que.co.kr
Expired- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.que.co.kr
- Valid from
- Jan 18, 2020
- Valid until
- Feb 21, 2021 (expired 2049 days ago)
- Public key
- RSA 2048-bit
- Serial
- 7C560DB0063F34245CA1D3CD
- SHA-256 fingerprint
- 1A:0C:B0:FF:56:9B:BA:5C:6B:EF:26:0D:C9:61:82:57:EF:EE:1A:F0:7D:1F:51:6A:66:14:64:1F:A3:33:65:41
- Chain
- AlphaSSL CA - SHA256 - G2 → GlobalSign Root CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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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