SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
oag-schule.de
SSL/TLS Certificate
SSL/TLS Certificate for oag-schule.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- oag-schule.de
- Valid from
- Oct 19, 2026
- Valid until
- Jan 17, 2027 (70 days remaining)
- Public key
- EC 256-bit
- Serial
- 05C7B210E0BEE64B28E2E7F6FC1661B380DF
- SHA-256 fingerprint
- E8:A0:64:AE:5B:36:43:E8:19:32:DC:6C:7A:03:6F:F0:DC:E3:EF:89:E7:3D:29:E0:CD:B1:CD:B2:28:64:0C:79
- Chain
- YE2 → 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).
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Uptime
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DNS changes
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TLS certificate
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