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 cis-net.com

Valid
Issued by (CA)
DigiCert Inc
Subject
cis-net.com
Valid from
Feb 19, 2026
Valid until
Feb 18, 2027 (158 days remaining)
Public key
RSA 2048-bit
Serial
0AA9222248C5B56F6A4D461975474159
SHA-256 fingerprint
87:05:1A:21:54:15:BD:41:CA:EE:70:4C:9B:B3:32:CE:97:2D:86:1C:E4:0E:0B:A8:79:80:73:30:26:54:EA:8E
Chain
Encryption Everywhere DV TLS CA - G2 → DigiCert Global Root G2
Subject Alternative Names (2)
cis-net.com, www.cis-net.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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