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 mafen.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- mafen.de
- Valid from
- Jun 27, 2026
- Valid until
- Sep 25, 2026 (67 days remaining)
- Public key
- EC 256-bit
- Serial
- 05ADA8E855445EEE881B660B5569CA80B66C
- SHA-256 fingerprint
- 49:0F:D9:C4:C8:73:80:96:A7:FD:6A:2B:15:E3:BB:59:86:47:3A:05:D3:6E:51:D4:35:5B:F4:FA:38:1A:08:65
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).