SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for obpi.de
Untrusted chain- Issued by (CA)
- Let's Encrypt
- Subject
- obpi.de
- Valid from
- Jul 22, 2026
- Valid until
- Oct 20, 2026 (25 days remaining)
- Public key
- EC 256-bit
- Serial
- 05F34AA99F85E0DC3813A34239ED1FA57AEA
- SHA-256 fingerprint
- 97:74:3D:9B:11:6F:47:59:22:3F:B9:AB:5E:5C:F9:91:71:FA:69:B7:D6:52:C9:27:F0:A8:99:BA:CF:C9:F7:7B
- Chain
- —
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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