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 cino.com.cn

Valid
Issued by (CA)
Asseco Data Systems S.A.
Subject
cino.com.cn
Valid from
Jun 22, 2026
Valid until
Jan 7, 2027 (97 days remaining)
Public key
RSA 2048-bit
Serial
6AA0795A3EBF938953B95522B51152A9
SHA-256 fingerprint
65:A8:39:B1:88:0B:99:A6:8F:62:76:4F:ED:C2:95:4C:85:11:77:DC:A4:89:5F:70:4E:72:E7:D3:B7:04:E7:73
Chain
Certum DV TLS G2 R39 CA → Certum Trusted Root CA → Certum Trusted Network CA
Subject Alternative Names (2)
cino.com.cn, www.cino.com.cn

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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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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