SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gebaeude-technik.de
SSL/TLS Certificate
SSL/TLS Certificate for gebaeude-technik.de
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- win13.serviceprovider.de
- Valid from
- Aug 16, 2026
- Valid until
- Nov 14, 2026 (57 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 054F5A0A7921986CFFC821FDFE60534F7463
- SHA-256 fingerprint
- B6:FD:EA:05:B6:B9:3C:71:E9:CF:0E:DD:77:B4:5E:2C:FE:6D:9B:81:3A:BA:15:E1:D5:24:62:B2:2E:6A:6E:EA
- Chain
- YR1 → 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 15, 2026.
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Uptime
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DNS changes
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TLS certificate
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