SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gnu-tech.it
SSL/TLS Certificate
SSL/TLS Certificate for gnu-tech.it
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- gnu-tech.it
- Valid from
- Oct 2, 2026
- Valid until
- Dec 31, 2026 (58 days remaining)
- Public key
- EC 256-bit
- Serial
- 056088124E322A76F857B212BB0489BCD4AC
- SHA-256 fingerprint
- 89:C9:A8:B7:76:F9:27:DD:73:39:E5:19:81:B6:42:F7:22:EA:F6:CC:EB:A9:D2:91:D1:13:45:8F:3C:94:2D:E1
- 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 Oct 24, 2026.
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Uptime
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DNS changes
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TLS certificate
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