SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for kangjin-china.com

Valid
Issued by (CA)
Let's Encrypt
Subject
kangjin-china.com
Valid from
Jul 14, 2026
Valid until
Oct 12, 2026 (59 days remaining)
Public key
RSA 2048-bit
Serial
05A4B2CAB7F4178942F4AA044343F0640078
SHA-256 fingerprint
06:66:36:8F:C5:E2:DD:A9:B0:8B:41:6F:8C:62:3E:12:C8:13:85:2F:B8:86:5B:D9:E5:71:98:58:1A:28:43:1C
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
kangjin-china.com, www.kangjin-china.com

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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