SSL/TLS Certificate Lookup

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

istec.pt

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for istec.pt

Valid
Issued by (CA)
Sectigo Limited
Subject
istec.pt
Valid from
Jun 23, 2026
Valid until
Jan 7, 2027 (171 days remaining)
Public key
RSA 2048-bit
Serial
0975E4DFDEBAA1E72D322114CAE1FBBE
SHA-256 fingerprint
23:D1:E2:DA:93:58:F2:C0:6E:6B:67:1D:B9:D0:83:94:74:A3:DB:BB:4B:E0:0C:92:8C:FB:53:45:1E:28:6F:3B
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
Subject Alternative Names (3)
*.istec.pt, *.learnstudio.com, istec.pt

Certificate Authority Authorization (CAA)

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