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 sit-test.it

Valid
Issued by (CA)
Actalis S.p.A.
Subject
*.sit-test.it
Valid from
Feb 20, 2026
Valid until
Mar 23, 2027 (163 days remaining)
Public key
RSA 2048-bit
Serial
3A1FBDCA25F96336269109115412C239
SHA-256 fingerprint
01:BE:C8:30:71:BE:E8:E9:BC:B9:BC:1D:B4:A6:11:C3:C7:CD:8D:11:EF:51:DE:4D:BC:F5:09:5B:0C:71:4A:68
Chain
Actalis Domain Validation Server CA G3 → Actalis Authentication Root CA
Subject Alternative Names (2)
*.sit-test.it, sit-test.it

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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