SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gacc-frankfurt.de
SSL/TLS Certificate
SSL/TLS Certificate for gacc-frankfurt.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.gacc-frankfurt.de
- Valid from
- Sep 25, 2025
- Valid until
- Oct 16, 2026 (79 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 19C8F91470916CADC8C4792E29A509A2
- SHA-256 fingerprint
- 18:0E:97:B8:70:C4:65:73:D0:9C:98:02:7B:F4:11:10:D7:43:4A:09:40:D6:BC:4F:76:EE:CF:DE:D3:25:B3:62
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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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