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 aspera.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
aspera.ch
Valid from
Jul 15, 2026
Valid until
Oct 13, 2026 (84 days remaining)
Public key
EC 256-bit
Serial
051C4ACF1A50981F1882D1300B66BC80DABC
SHA-256 fingerprint
5A:E4:34:1C:80:C7:41:94:61:18:D6:53:1A:6C:2D:C8:56:57:2F:53:4E:A5:8E:47:E7:D1:F3:85:68:8D:37:2C
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
aspera.ch

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.