SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
chauffage-zimmermann.com
SSL/TLS Certificate
SSL/TLS Certificate for chauffage-zimmermann.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.chauffage-zimmermann.com
- Valid from
- Oct 28, 2026
- Valid until
- Jan 26, 2027 (73 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0542027BC76D67B7A166C8BD9E2464FC1D07
- SHA-256 fingerprint
- 20:87:42:CC:44:71:E1:0A:B1:29:6A:54:BE:E4:E4:2A:15:19:38:56:8E:6B:CA:12:D2:AA:87:97:60:5F:56:6C
- Chain
- YR2 → Root YR → ISRG Root X1
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 21, 2026.
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TLS certificate
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