SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for cnn.com
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- cnn.com
- Valid from
- Sep 3, 2026
- Valid until
- Mar 21, 2027 (170 days remaining)
- Public key
- EC 384-bit
- Serial
- 012BAAD93ED6EF41E3E2CDB7FA77C168
- SHA-256 fingerprint
- 9D:CD:3E:96:F2:E2:50:BD:7E:B6:E4:54:64:21:81:2A:6A:5F:C5:A4:23:8F:A5:85:45:D7:7D:3F:B8:BA:29:B0
- Chain
- GlobalSign Atlas E46 OV TLS CA 2026 Q3 → GlobalSign Root E46 → GlobalSign
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 28, 2026.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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