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 unikt.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- unikt.de
- Valid from
- Oct 26, 2026
- Valid until
- Jan 24, 2027 (79 days remaining)
- Public key
- EC 256-bit
- Serial
- 062CB77FE82F1A532BC7C7A34A8338826EB8
- SHA-256 fingerprint
- 09:19:E3:88:00:F7:36:0E:1A:9D:44:13:D7:E1:81:73:60:E0:1C:6B:5C:C0:75:55:4F:43:6A:59:C1:00:E2:D7
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 24, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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