SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wondercat.kr
SSL/TLS Certificate
SSL/TLS Certificate for wondercat.kr
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- wondercat.kr
- Valid from
- May 10, 2025
- Valid until
- May 10, 2026 (expired 134 days ago)
- Public key
- RSA 2048-bit
- Serial
- 60A7E71A5378BD2A12BFBAE533232A60
- SHA-256 fingerprint
- 55:E7:E0:4A:E1:98:08:0C:9D:06:9E:60:37:F1:04:A6:CD:E0:62:78:5F:D5:DA:18:EF:2D:59:5A:80:CE:22:19
- Chain
- Sectigo RSA Domain 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.
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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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