SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
fetzer-bau.de
SSL/TLS Certificate
SSL/TLS Certificate for fetzer-bau.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- fetzer-bau.de
- Valid from
- Sep 12, 2026
- Valid until
- Dec 11, 2026 (57 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0670787BF23FFE4A70F1BE024FDF71143F0D
- SHA-256 fingerprint
- 7D:BB:45:21:BA:99:AC:F2:F2:BB:58:87:5F:B3:C1:65:CD:61:20:C5:95:96:82:CC:E8:0E:2A:19:D9:3E:DB:51
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 9, 2026.
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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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