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 trefl.de
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- trefl.de
- Valid from
- Sep 19, 2022
- Valid until
- Dec 18, 2022 (expired 1311 days ago)
- Public key
- RSA 2048-bit
- Serial
- 04065E2CCA90B7FE6A59AEBBCBD04178AC94
- SHA-256 fingerprint
- 2B:C0:88:92:87:04:AD:EF:23:40:86:E1:F4:98:42:E7:0D:57:71:D3:B7:3D:B4:C6:1D:08:39:94:5D:67:F1:C9
- Chain
- R3 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.