SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
patent-austria.net
SSL/TLS Certificate
SSL/TLS Certificate for patent-austria.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- patent-austria.net
- Valid from
- Sep 28, 2026
- Valid until
- Dec 27, 2026 (87 days remaining)
- Public key
- EC 256-bit
- Serial
- 06E4CCA4D21DBAF18147117AD13D68C90E2A
- SHA-256 fingerprint
- 2C:00:7E:D3:AE:28:1B:79:E3:F0:3F:41:C6:77:C2:28:AB:67:08:A3:D9:B2:35:E5:4A:56:2A:18:3E:CD:65:0D
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
We've observed 1 previous certificate for this host. This certificate has been served since Sep 28, 2026.
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DNS changes
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TLS certificate
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