SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sodeyama-dental.jp
SSL/TLS Certificate
SSL/TLS Certificate for sodeyama-dental.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sodeyama-dental.jp
- Valid from
- Oct 30, 2026
- Valid until
- Jan 28, 2027 (86 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0543999864A8B305495F816CB6BE5442B6BC
- SHA-256 fingerprint
- 5D:3C:29:BD:62:02:97:69:E8:0F:F3:97:8A:AB:6A:1F:C0:C7:A5:42:B0:EA:5C:26:4D:99:78:8E:30:B6:4E:45
- 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 Sep 14, 2026.
Never get surprised by sodeyama-dental.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sodeyama-dental.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.