SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gisma-connectors.de
SSL/TLS Certificate
SSL/TLS Certificate for gisma-connectors.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- gisma-connectors.de
- Valid from
- Jul 9, 2026
- Valid until
- Oct 7, 2026 (74 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 053855E01912BD34655B991789D29B768222
- SHA-256 fingerprint
- 82:B8:C0:EF:AE:D5:79:47:1E:C1:A6:53:F2:D1:10:F0:33:B5:97:88:7E:AE:60:B9:5E:BE:81:B2:64:65:F0:A5
- Chain
- YR1 → Root YR → 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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