SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kompetenz-wasser.de
SSL/TLS Certificate
SSL/TLS Certificate for kompetenz-wasser.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- kompetenz-wasser.de
- Valid from
- Oct 2, 2026
- Valid until
- Dec 31, 2026 (86 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 057A1149A349E35708E0CB0A047EF80ED83C
- SHA-256 fingerprint
- A5:EF:99:7D:F5:BF:89:2D:7B:A2:97:7B:E4:0B:E5:88:2B:EA:7D:9B:15:02:7A:F2:CB:1C:9A:AB:D9:FF:5D:C9
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 4, 2026.
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Uptime
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DNS changes
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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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