TLS 1.3 TLS_AES_128_GCM_SHA256
Leaf Certificate
Subject *.issuu.com
Issuer GlobalSign Atlas R3 DV TLS CA 2025 Q3
Valid From Sep 3, 2025
Valid Until Oct 5, 2026 (49 days)
Algorithm SHA256-RSA
Subject Alternative Names
*.issuu.comissuu.com
Intermediate
Subject GlobalSign Atlas R3 DV TLS CA 2025 Q3
Issuer GlobalSign
Valid From Apr 16, 2025
Valid Until Apr 16, 2027 (242 days)
Algorithm SHA256-RSA
Findings
✓ TLS 1.3 supported
✓ SSL certificate valid (49 days remaining)
✓ Certificate covers 2 domains (SANs)
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