SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gs-dieckhausschule.de
SSL/TLS Certificate
SSL/TLS Certificate for gs-dieckhausschule.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- gs-dieckhausschule.de
- Valid from
- Jul 28, 2026
- Valid until
- Oct 26, 2026 (84 days remaining)
- Public key
- EC 256-bit
- Serial
- 061EACD299CA1F98180F93D39982615EF22B
- SHA-256 fingerprint
- BD:B4:87:AD:FB:81:E0:A7:2B:55:05:6A:3A:27:D0:90:D8:C9:C9:BC:A3:72:9A:2B:D2:EE:ED:7B:92:AC:C3:CD
- 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).
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Uptime
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DNS changes
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TLS certificate
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