SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
suzak-k.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for suzak-k.co.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.suzak-k.co.jp
- Valid from
- Aug 24, 2026
- Valid until
- Mar 11, 2027 (117 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 376E46FA67B779C3619B6323
- SHA-256 fingerprint
- EE:5D:A5:E5:35:0D:2A:37:DB:40:CA:27:CB:FD:99:5D:35:9B:75:24:FF:08:1B:80:93:7E:55:7D:E3:AC:D4:89
- Chain
- GlobalSign GCC R46 AlphaSSL CA 2025 → GlobalSign Root R46 → GlobalSign
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 Oct 19, 2026.
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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