TLS 1.3 TLS_AES_128_GCM_SHA256
Leaf Certificate
Subject up.pt
Issuer GEANT TLS RSA 1
Valid From Nov 20, 2025
Valid Until Nov 20, 2026 (95 days)
Algorithm SHA256-RSA
Subject Alternative Names
up.ptwww.up.pt
Intermediate
Subject GEANT TLS RSA 1
Issuer HARICA TLS RSA Root CA 2021
Valid From Jan 3, 2025
Valid Until Dec 31, 2039 (4884 days)
Algorithm SHA256-RSA
Intermediate
Subject HARICA TLS RSA Root CA 2021
Issuer Hellenic Academic and Research Institutions RootCA 2015
Valid From Sep 2, 2021
Valid Until Aug 31, 2029 (1110 days)
Algorithm SHA256-RSA
Findings
✓ TLS 1.3 supported
✓ SSL certificate valid (95 days remaining)
✓ Certificate covers 2 domains (SANs)
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