SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gb-office.de
SSL/TLS Certificate
SSL/TLS Certificate for gb-office.de
Self-signed- Issued by (CA)
- Plesk
- Subject
- Plesk
- Valid from
- Feb 11, 2019
- Valid until
- Feb 11, 2020 (expired 2420 days ago)
- Public key
- RSA 2048-bit
- Serial
- 5C616B49
- SHA-256 fingerprint
- 2F:D1:6A:81:61:7D:CB:EC:BD:5E:1C:C0:DA:1F:9A:38:FD:B5:F6:5F:97:12:91:90:00:71:C4:B3:40:9F:C0:FC
- Chain
- Plesk
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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