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 rosne.pl
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- rosne.pl
- Valid from
- May 18, 2026
- Valid until
- Aug 16, 2026 (25 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05AD9C4DC472EEBCDD36D794EE38BEDC9E5F
- SHA-256 fingerprint
- 0D:BF:A8:B7:98:EA:5A:EE:16:83:75:2C:0A:38:15:C6:10:B7:7B:C8:4C:9B:11:9F:B4:4D:F4:01:7F:5A:98:D3
- Chain
- R12 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.