SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
takigami-kk.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for takigami-kk.co.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- takigami-kk.co.jp
- Valid from
- Sep 30, 2026
- Valid until
- Dec 29, 2026 (51 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 052161095DC7FE75834C1588E41D8C4AADF1
- SHA-256 fingerprint
- F1:97:CD:B8:F1:5C:C8:6D:5C:E9:07:DF:4D:08:A6:86:F3:86:FA:EA:E7:04:60:A9:83:42:F0:7C:A8:81:A2:2F
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 9, 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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