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 pika.si
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- zero.si
- Valid from
- Jul 1, 2026
- Valid until
- Sep 29, 2026 (70 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05B904021E28C2D38625D883DE810073182A
- SHA-256 fingerprint
- 43:8F:AB:6E:93:A9:F2:04:72:CA:70:27:47:85:A3:0E:20:6C:45:8A:E4:F6:D9:22:14:B2:49:58:C0:DB:FA:77
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).