SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bau-informatik.com
SSL/TLS Certificate
SSL/TLS Certificate for bau-informatik.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- mail.bau-informatik.com
- Valid from
- Nov 1, 2026
- Valid until
- Jan 30, 2027 (84 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0681153338E97DAA9C39711CDE4F28C08C72
- SHA-256 fingerprint
- 62:AF:E2:2B:84:BC:66:6F:47:30:A6:13:03:FD:68:25:94:6D:08:B4:6F:1B:8C:3C:42:63:C9:F2:F7:50:87:16
- Chain
- YR2 → Root YR → 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 19, 2026.
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Uptime
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DNS changes
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TLS certificate
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