SSL/TLS Certificate Lookup

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

ist-id.pt

SSL/TLS Certificate

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SSL/TLS Certificate for ist-id.pt

Valid
Issued by (CA)
Let's Encrypt
Subject
smartsigner.pt
Valid from
Jul 26, 2026
Valid until
Oct 24, 2026 (88 days remaining)
Public key
RSA 4096-bit
Serial
06422EE01B6E79BB90E08625182C0864D9E7
SHA-256 fingerprint
7F:5C:0B:60:62:9D:07:C9:26:24:66:4F:87:EF:7F:4B:55:2D:EB:D5:61:4F:B3:4F:0A:28:B6:AB:49:AF:C1:52
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (22)
adist.pt, ai2participa.pt, e.tecnico-mais.pt, e.tecnico-plus.pt, e.tecnicomais.pt, e.tecnicoplus.pt, ist-id.pt, iti.larsys.pt, larsys.pt, prodigi.pt, renovaveisparticipa.pt, sips2021.org, smartsigner.eu, smartsigner.pt, transformingrivers.eu, www.adist.pt, www.ist-id.pt, www.prodigi.pt, www.sips2021.org, www.smartsigner.eu, www.smartsigner.pt, www.transformingrivers.eu

Certificate Authority Authorization (CAA)

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

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DNS changes

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TLS certificate

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