SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bs-hana.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for bs-hana.co.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- bs-hana.co.jp
- Valid from
- Oct 1, 2026
- Valid until
- Dec 30, 2026 (44 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 056668C9C9C62CC66E543E98E8014CB3F8F0
- SHA-256 fingerprint
- 1F:CE:2C:9E:B7:7F:33:12:63:72:D2:DA:01:2C:58:F5:9B:91:0C:D5:F6:71:CD:C5:75:BD:2C:5F:45:B5:E1:F8
- 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 29, 2026.
Never get surprised by bs-hana.co.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch bs-hana.co.jp continuously, notifying you the moment anything moves across all three signals:
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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