TLS 1.3 TLS_AES_128_GCM_SHA256
Leaf Certificate
Subject *.speedtest.net
Issuer GlobalSign Atlas R3 DV TLS CA 2025 Q3
Valid From Oct 7, 2025
Valid Until Nov 8, 2026 (83 days)
Algorithm SHA256-RSA
Subject Alternative Names
*.speedtest.net*.cdnst.net*.cellmaps.com*.dualstack.speedtestcustom.com*.host.speedtest.net*.ipv4-only.speedtestcustom.com*.ookla.com*.pingtest.net*.speedtest.co*.speedtestcustom.com*.webtest.netookla.compingtest.netspeedtest.cospeedtestcustom.comspeedtest.net
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 (83 days remaining)
✓ Certificate covers 16 domains (SANs)
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