SSL/TLS Certificate Lookup

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

csi.it

SSL/TLS Certificate

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SSL/TLS Certificate for csi.it

Valid

Issued by (CA): Sectigo Limited
Subject: *.csi.it
Valid from: Jun 12, 2026
Valid until: Dec 27, 2026 (148 days remaining)
Public key: RSA 2048-bit
Serial: 9A72DFF257726355B8C4E0055250A1DC
SHA-256 fingerprint: D8:BD:08:EA:86:66:FA:AC:EE:72:AD:D2:82:12:3C:62:00:44:C8:D6:E3:22:E1:B4:4E:53:76:AE:32:4F:0E:BE
Chain: Sectigo Public Server Authentication CA OV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority

Subject Alternative Names (2)

*.csi.it, csi.it

Certificate Authority Authorization (CAA)

The serving CA (Sectigo Limited) is not among the authorities this domain's CAA records authorize (entrust.net, letsencrypt.org). This can indicate a misconfiguration or an unexpected issuance.

This certificate has been served since Jul 23, 2026.

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TLS certificate

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