SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
junon-clinic.jp
SSL/TLS Certificate
SSL/TLS Certificate for junon-clinic.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- junon-clinic.jp
- Valid from
- Oct 9, 2026
- Valid until
- Jan 7, 2027 (56 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 060B41CFF71E9CDD5832E05168809B62EE18
- SHA-256 fingerprint
- 77:16:D8:30:23:70:74:EE:13:CC:F5:A6:B5:21:EE:D6:D2:BF:EC:32:63:09:0D:48:5E:16:6A:E1:FD:8F:EC:E4
- 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.
This certificate has been served since Oct 28, 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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