SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nara-kankou.or.jp
SSL/TLS Certificate
SSL/TLS Certificate for nara-kankou.or.jp
Self-signed- Issued by (CA)
- Unspecified
- Subject
- os3-285-32057.vs.sakura.ne.jp
- Valid from
- Dec 2, 2025
- Valid until
- Dec 2, 2026 (105 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 092B0E05E1B89B7C
- SHA-256 fingerprint
- B7:A0:D8:5F:E8:E3:38:1D:37:B2:3E:A3:0D:35:25:49:29:8F:D0:5B:76:6C:25:FF:45:D9:C1:8F:D7:3A:D0:A7
- Chain
- os3-285-32057.vs.sakura.ne.jp
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by nara-kankou.or.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch nara-kankou.or.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.