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 j2.cn
Valid- Issued by (CA)
- ZoTrus Technology Limited
- Subject
- www.j2.cn
- Valid from
- Jul 30, 2026
- Valid until
- Oct 28, 2026 (27 days remaining)
- Public key
- EC 256-bit
- Serial
- 37317E8D5D102AE15D380AC2AFC41774
- SHA-256 fingerprint
- 3F:9D:9D:3F:D1:C0:F7:7C:58:54:EA:83:39:4A:53:02:B9:B7:D9:AE:98:39:81:2A:3C:8D:16:10:30:2C:DE:1F
- Chain
- ZoTrus DV TLS ECC CA 1 → SSL.com TLS Transit ECC CA R2 → SSL.com TLS ECC Root CA 2022 → SSL.com Root Certification Authority ECC
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 Aug 6, 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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