SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sk-datentechnik.com
SSL/TLS Certificate
SSL/TLS Certificate for sk-datentechnik.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sk-datentechnik.de
- Valid from
- Oct 3, 2026
- Valid until
- Jan 1, 2027 (50 days remaining)
- Public key
- EC 256-bit
- Serial
- 05C26B78F297F5DD13C6C5A9D11B9BA2FA63
- SHA-256 fingerprint
- 4D:45:71:C9:97:F1:62:27:DF:AF:57:6A:C7:CF:25:38:EF:70:CD:E6:E8:19:99:D3:F9:A2:22:1B:70:AB:9B:DF
- Chain
- YE1 → 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.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 11, 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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