TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
Leaf Certificate
Subject *.zhihu.com
Issuer GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1
Valid From Dec 11, 2025
Valid Until Dec 10, 2026 (116 days)
Algorithm SHA256-RSA
Subject Alternative Names
*.zhihu.comzhihu.com
Intermediate
Subject GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1
Issuer DigiCert Global Root G2
Valid From Dec 15, 2022
Valid Until Dec 14, 2032 (2312 days)
Algorithm SHA256-RSA
Intermediate
Subject DigiCert Global Root G2
Issuer DigiCert Global Root CA
Valid From Jan 18, 2024
Valid Until Nov 9, 2031 (1911 days)
Algorithm SHA256-RSA
Findings
⚠ TLS 1.2 in use
✓ SSL certificate valid (116 days remaining)
✓ Certificate covers 2 domains (SANs)
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