SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dao-schule.de
SSL/TLS Certificate
SSL/TLS Certificate for dao-schule.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- dao-schule.de
- Valid from
- Jun 16, 2026
- Valid until
- Sep 14, 2026 (54 days remaining)
- Public key
- EC 256-bit
- Serial
- 058A23086BF4DBDA1C9660A51B4AA0C1CC3D
- SHA-256 fingerprint
- 42:57:86:32:01:9F:80:C0:EB:47:B4:A7:B7:17:C1:59:A6:BA:CE:C5:1C:93:E8:61:16:43:DD:83:20:85:59:3C
- Chain
- YE2 → 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.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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