SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

primero.ws

SSL/TLS Certificate

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SSL/TLS Certificate for primero.ws

Valid
Issued by (CA)
Let's Encrypt
Subject
primero.ws
Valid from
Jul 20, 2026
Valid until
Oct 18, 2026 (88 days remaining)
Public key
RSA 2048-bit
Serial
05D7EBB8B8C432B401CAF181C8F42AC3F852
SHA-256 fingerprint
94:3F:3A:16:79:55:EC:E0:DC:24:26:F3:05:77:DE:07:69:0D:91:1F:03:37:18:B4:1E:49:67:83:70:C4:26:08
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.primero.ws, primero.ws

Certificate Authority Authorization (CAA)

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