SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
upa-online.at
SSL/TLS Certificate
SSL/TLS Certificate for upa-online.at
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- upa-online.at
- Valid from
- Sep 18, 2026
- Valid until
- Dec 17, 2026 (74 days remaining)
- Public key
- EC 256-bit
- Serial
- 06A138646712F369D47E917B07C9DAD79EBB
- SHA-256 fingerprint
- 99:DE:24:6E:3D:D3:42:59:BF:F8:3F:13:F7:E8:68:22:01:70:EB:11:71:F0:A7:FB:F3:57:25:2C:B5:3B:92:7A
- 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 Sep 29, 2026.
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Uptime
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DNS changes
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TLS certificate
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