SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ctc.ac.cn
SSL/TLS Certificate
SSL/TLS Certificate for ctc.ac.cn
Valid- Issued by (CA)
- Xin Net Technology Corp.
- Subject
- www.ctc.ac.cn
- Valid from
- Jan 21, 2026
- Valid until
- Feb 19, 2027 (124 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 65F8B9D1A1B4CCFB88F0281217C7C7E55E326E6B
- SHA-256 fingerprint
- 3C:97:46:72:0A:66:94:3F:05:84:8F:AC:77:1A:0B:93:72:E7:8F:7A:20:4D:23:46:09:91:87:A6:47:F8:53:D5
- Chain
- XinNet DV TLS RSA CA 2025 → TrustAsia TLS RSA Root CA → Certum Trusted Network CA
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 12, 2026.
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Uptime
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DNS changes
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TLS certificate
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