SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
c-free.com.cn
SSL/TLS Certificate
SSL/TLS Certificate for c-free.com.cn
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- c-free.com.cn
- Valid from
- Sep 16, 2026
- Valid until
- Dec 15, 2026 (30 days remaining)
- Public key
- EC 256-bit
- Serial
- 0530914CC4A8B0F4AC52DB6CB0EB33CC864F
- SHA-256 fingerprint
- 2F:A2:36:42:C1:CD:0F:AA:1C:34:62:BB:08:8E:5C:E4:68:86:01:D7:EE:AE:AF:02:DB:9E:99:6A:52:F8:91:27
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 25, 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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