TLS 1.3 TLS_AES_128_GCM_SHA256
Leaf Certificate
Subject cwi.nl
Issuer GEANT TLS ECC 1
Valid From Jul 23, 2026
Valid Until Feb 7, 2027 (174 days)
Algorithm ECDSA-SHA384
Subject Alternative Names
cwi.nlwww.cwi.nl
Intermediate
Subject GEANT TLS ECC 1
Issuer HARICA TLS ECC Root CA 2021
Valid From Jan 3, 2025
Valid Until Dec 31, 2039 (4884 days)
Algorithm ECDSA-SHA384
Intermediate
Subject HARICA TLS ECC Root CA 2021
Issuer Hellenic Academic and Research Institutions ECC RootCA 2015
Valid From Sep 2, 2021
Valid Until Aug 31, 2029 (1110 days)
Algorithm ECDSA-SHA384
Findings
✓ TLS 1.3 supported
✓ SSL certificate valid (174 days remaining)
✓ Certificate covers 2 domains (SANs)
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