SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
utech-nn.com
SSL/TLS Certificate
SSL/TLS Certificate for utech-nn.com
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- utech-nn.com
- Valid from
- Aug 2, 2023
- Valid until
- Oct 31, 2023 (expired 1028 days ago)
- Public key
- EC 256-bit
- Serial
- 04DDF78AB134C7C76C5F5C21ED44963D4606
- SHA-256 fingerprint
- ED:C9:74:A2:90:9A:69:B4:31:45:26:FB:81:C2:B2:DA:4D:75:34:1D:60:F8:B0:14:49:6D:8A:9B:7E:B3:D5:E6
- Chain
- R3 → 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 Jul 27, 2026.
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Uptime
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DNS changes
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TLS certificate
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