SSL/TLS Certificate Lookup

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

runin.app

SSL/TLS Certificate

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SSL/TLS Certificate for runin.app

Valid
Issued by (CA)
Let's Encrypt
Subject
runin.app
Valid from
May 31, 2026
Valid until
Aug 29, 2026 (38 days remaining)
Public key
RSA 2048-bit
Serial
06001F21432F0711A85271BCA64BF1A8CA40
SHA-256 fingerprint
CE:57:8F:50:B4:7B:19:FC:D7:FA:7B:19:C9:1B:AC:50:11:11:4E:D1:DC:EE:49:9C:5B:80:7B:92:59:11:E0:3E
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
runin.app

Certificate Authority Authorization (CAA)

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