SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for h-2-o.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- h-2-o.de
- Valid from
- Mar 12, 2026
- Valid until
- Mar 12, 2027 (209 days remaining)
- Public key
- RSA 2048-bit
- Serial
- E54747B43970EE44B4FC99B1E9AE30F5
- SHA-256 fingerprint
- 49:8A:24:34:38:1E:BE:57:16:7D:CF:92:2A:43:27:AE:6E:D5:4B:74:F4:8F:5A:7A:26:78:59:AD:1D:B6:65:BC
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
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
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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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