SSL/TLS Certificate Lookup

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

SSL/TLS Certificate for a-sumica.com

Valid
Issued by (CA)
Japan Registry Services Co., Ltd.
Subject
www.a-sumica.com
Valid from
Aug 5, 2026
Valid until
Nov 2, 2026 (86 days remaining)
Public key
RSA 2048-bit
Serial
421B60DF5158462766601A5253F1D2EA
SHA-256 fingerprint
59:24:23:29:CF:5E:48:3C:8D:5E:7A:E4:F7:EC:1B:95:95:FC:8A:E6:22:5E:93:A3:0B:21:48:DF:3F:C4:35:81
Chain
JPRS DV RSA CA 2024 G1 → SECOM TLS RSA Root CA 2024
Subject Alternative Names (2)
a-sumica.com, www.a-sumica.com

Certificate Authority Authorization (CAA)

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

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Uptime

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DNS changes

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TLS certificate

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