SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ogura-clinic.jp
SSL/TLS Certificate
SSL/TLS Certificate for ogura-clinic.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.ogura-clinic.jp
- Valid from
- Jul 31, 2026
- Valid until
- Oct 29, 2026 (83 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 063936987CF00C4AA586B087852AEFFDC0B2
- SHA-256 fingerprint
- 86:3E:C3:4D:B8:69:D6:F2:EF:BC:E7:E4:C6:A8:A5:1D:A6:A9:38:40:14:0A:4C:6C:87:AA:0D:EF:DC:EA:7D:3C
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ogura-clinic.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ogura-clinic.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, DNSSEC, CNAME 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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