SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kansai-seijo.com
SSL/TLS Certificate
SSL/TLS Certificate for kansai-seijo.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- kansai-seijo.com
- Valid from
- Sep 27, 2026
- Valid until
- Dec 26, 2026 (67 days remaining)
- Public key
- EC 256-bit
- Serial
- 1BBA9683C6F9A6EA133826345CCE3EBF
- SHA-256 fingerprint
- 16:59:FB:D2:02:89:F4:A0:E5:0B:A7:A1:CC:C5:4F:A7:FB:E9:E4:64:64:46:E5:90:C2:37:34:35:49:35:71:44
- Chain
- WE1 → GTS Root R4
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 13, 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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