SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
it-app.cn
SSL/TLS Certificate
SSL/TLS Certificate for it-app.cn
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- hltz9988.ng388ao.com
- Valid from
- Mar 20, 2026
- Valid until
- Jun 18, 2026 (expired 79 days ago)
- Public key
- RSA 2048-bit
- Serial
- 056EABAA04F5BE3AF9FC3122EACB34F4C057
- SHA-256 fingerprint
- D3:2E:2B:8E:45:81:8F:BA:62:B0:69:FC:A8:F8:E8:04:9C:D1:25:AB:CB:5A:FF:EE:83:28:7D:EF:B2:16:8C:5C
- Chain
- R13 → 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 Aug 22, 2026.
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TLS certificate
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