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 dfn.nl
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- redirector.dfn.nl
- Valid from
- Jun 28, 2026
- Valid until
- Sep 26, 2026 (67 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05374015D5D08BB50173A11032DD93FB9DEE
- SHA-256 fingerprint
- 62:BF:C1:64:35:91:E6:42:5D:7A:B5:45:3C:EF:4F:19:FD:FA:31:8E:D1:51:2B:C2:47:34:C7:41:BE:06:1C:A2
- 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.