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 st-pages.de

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
smarthome.i--o.io
Valid from
Aug 17, 2026
Valid until
Nov 15, 2026 (66 days remaining)
Public key
EC 256-bit
Serial
0607903D75573EDBB3E78E30F4D25A8F134E
SHA-256 fingerprint
5D:04:8A:85:2A:CF:98:A8:27:5E:BF:4E:D5:73:AD:4C:DE:73:6C:39:A9:C5:FC:4E:E7:1D:70:1A:3C:58:DF:FB
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
smarthome.i--o.io, www.smarthome.i--o.io

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).

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TLS certificate

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