SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sps-a.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for sps-a.co.jp
Expiring soon- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.sps-a.co.jp
- Valid from
- Oct 22, 2026
- Valid until
- Nov 25, 2026 (20 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 557CCCA5A0A0E1C4743C2A75
- SHA-256 fingerprint
- 11:48:CF:ED:67:6F:43:AC:D5:25:2B:B4:CC:CE:4F:04:0B:0B:EF:BE:5C:C1:C0:63:13:90:80:D2:DD:2E:1B:5C
- Chain
- GlobalSign GCC R46 AlphaSSL CA 2025 → GlobalSign Root R46
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
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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