SSL/TLS Certificate Lookup

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

00000000-0000-0000-0000-000000000000.com

SSL/TLS Certificate

SSL/TLS Certificate for 00000000-0000-0000-0000-000000000000.com

Hostname mismatch
Issued by (CA)
Amazon
Subject
*.herokuapp.com
Valid from
Dec 31, 2025
Valid until
Jan 28, 2027 (166 days remaining)
Public key
RSA 2048-bit
Serial
036E89D3AE96B1216EA8042F33777E7D
SHA-256 fingerprint
93:D1:EA:28:7A:7B:08:B9:38:D7:47:07:5B:14:AE:20:1E:AA:D6:C6:EF:45:0D:EB:8E:04:99:D8:DC:33:92:F0
Chain
Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (1)
*.herokuapp.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 Jul 25, 2026.

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Uptime

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DNS changes

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TLS certificate

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