SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nexia-aqua.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for nexia-aqua.co.jp
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- nexia-aqua.co.jp
- Valid from
- Nov 7, 2026
- Valid until
- Feb 5, 2027 (85 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05A3B8029B6DFA71540816AFAACB81664AB6
- SHA-256 fingerprint
- B7:35:7E:C7:12:EB:8D:DE:27:34:62:F3:C9:9F:60:9A:49:7D:4D:10:32:5B:BC:B8:CE:20:D4:F5:BD:27:A1:2B
- 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 15, 2026.
Never get surprised by nexia-aqua.co.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch nexia-aqua.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.