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 alsem.de
Valid- Issued by (CA)
- ZeroSSL GmbH
- Subject
- alsem.de
- Valid from
- Sep 8, 2026
- Valid until
- Dec 7, 2026 (51 days remaining)
- Public key
- EC 256-bit
- Serial
- 65778B968030BDFFF801CFD78C6446F4
- SHA-256 fingerprint
- 02:71:EC:13:C2:F9:70:A1:B7:5C:DE:C8:56:5A:92:61:13:D3:A5:82:C2:10:7B:DC:22:25:0F:4D:E2:16:C8:B2
- Chain
- ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 24, 2026.
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Uptime
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DNS changes
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TLS certificate
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