SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
stb-campus.de
SSL/TLS Certificate
SSL/TLS Certificate for stb-campus.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- stb-campus.de
- Valid from
- Jul 16, 2026
- Valid until
- Oct 14, 2026 (82 days remaining)
- Public key
- EC 384-bit
- Serial
- 054F0FDB3631976D7AFC44266EE988A127D5
- SHA-256 fingerprint
- 9E:77:79:0F:8E:62:F4:14:2E:FB:8A:77:D5:6C:72:3E:C9:E3:58:76:87:61:55:4D:03:EB:82:1C:84:70:CB:86
- 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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