SSL/TLS Certificate Lookup

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

edubuntu.com

SSL/TLS Certificate

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SSL/TLS Certificate for edubuntu.com

Valid
Issued by (CA)
Let's Encrypt
Subject
edubuntu.com
Valid from
Jun 29, 2026
Valid until
Sep 27, 2026 (67 days remaining)
Public key
RSA 2048-bit
Serial
05E79DBA5DDD6BB36CFB8A696BD145BB4274
SHA-256 fingerprint
82:17:8E:52:54:BD:BD:31:11:F0:0D:5A:92:72:B9:AF:B0:10:04:84:AC:B0:BB:FC:AD:1B:2F:D3:7A:84:35:96
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
edubuntu.com, www.edubuntu.com

Certificate Authority Authorization (CAA)

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