SSL/TLS Certificate Lookup

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

ec2-44-231-186-244.us-west-2.compute.amazonaws.com

SSL/TLS Certificate

SSL/TLS Certificate for ec2-44-231-186-244.us-west-2.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
flowstar.com
Valid from
Oct 5, 2026
Valid until
Jan 3, 2027 (52 days remaining)
Public key
RSA 2048-bit
Serial
06E151F79BE726B60D6B56D14A70C31F8652
SHA-256 fingerprint
0D:2F:8D:5E:49:7F:4C:05:E6:B3:5B:4A:CD:F9:5F:08:71:61:88:17:C4:69:D2:C3:8F:B4:E3:AF:4D:10:93:59
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (3)
flowstar.com, webmail.flowstar.com, www.flowstar.com

Certificate Authority Authorization (CAA)

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

This certificate has been served since Sep 26, 2026.

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TLS certificate

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