SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
takubo-grp.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for takubo-grp.co.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.takubo-grp.co.jp
- Valid from
- Sep 8, 2026
- Valid until
- Mar 26, 2027 (133 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 1CC269C5AF0AD6C065455E81
- SHA-256 fingerprint
- 94:CB:61:0B:DD:30:9D:D8:9C:41:13:A4:54:22:F4:A5:29:A8:1B:31:26:B4:07:88:6E:53:72:CB:20:F7:7C:CD
- Chain
- GlobalSign GCC R46 DV TLS 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.
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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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