TLS 1.3 TLS_AES_128_GCM_SHA256
Leaf Certificate
Subject osf.io
Issuer YR1
Valid From Aug 7, 2026
Valid Until Nov 5, 2026 (80 days)
Algorithm SHA256-RSA
Subject Alternative Names
osf.io
Intermediate
Subject YR1
Issuer Root YR
Valid From Sep 3, 2025
Valid Until Sep 2, 2028 (748 days)
Algorithm SHA256-RSA
Intermediate
Subject Root YR
Issuer ISRG Root X1
Valid From May 13, 2026
Valid Until Sep 2, 2032 (2209 days)
Algorithm SHA256-RSA
Findings
✓ TLS 1.3 supported
✓ SSL certificate valid (80 days remaining)
✓ Certificate covers 1 domains (SANs)
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