SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jbo-sft.de
SSL/TLS Certificate
SSL/TLS Certificate for jbo-sft.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- jbo-sft.de
- Valid from
- Aug 23, 2026
- Valid until
- Nov 21, 2026 (63 days remaining)
- Public key
- EC 256-bit
- Serial
- 05BF398646BEABC2424300B9ECC7AF3695DA
- SHA-256 fingerprint
- 0F:63:3C:AC:C2:AB:88:AC:36:36:1C:7F:FC:91:D2:1A:6C:D9:88:69:6C:EE:3A:8A:53:59:8B:47:10:10:87:76
- 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
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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