SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
monju-clinic.jp
SSL/TLS Certificate
SSL/TLS Certificate for monju-clinic.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- monju-clinic.jp
- Valid from
- Oct 12, 2026
- Valid until
- Jan 10, 2027 (66 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05BAB2EA7582EB25A4969DCA0C2810FD3448
- SHA-256 fingerprint
- CC:20:0F:4D:8B:DC:00:38:B2:A5:1D:60:1A:39:B7:63:02:C9:F6:78:AB:E9:18:95:C3:22:D1:2E:2E:67:AB:AB
- 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.
This certificate has been served since Nov 2, 2026.
Never get surprised by monju-clinic.jp's certificate expiring
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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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