SSL/TLS Certificate Lookup

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

ec2-54-189-165-155.us-west-2.compute.amazonaws.com

SSL/TLS Certificate

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SSL/TLS Certificate for ec2-54-189-165-155.us-west-2.compute.amazonaws.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
aatest.pentaserver.com
Valid from
Jun 23, 2026
Valid until
Sep 21, 2026 (62 days remaining)
Public key
RSA 2048-bit
Serial
0556257CD09A4140FFFDC048006D766254BB
SHA-256 fingerprint
85:3E:B9:59:5F:BE:2E:03:3F:52:3F:4A:AC:BD:6A:27:D8:45:8D:9F:53:0B:05:13:08:EF:27:34:AC:6A:43:BA
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (1)
aatest.pentaserver.com

Certificate Authority Authorization (CAA)

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