SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ja-kyoto.jp
SSL/TLS Certificate
SSL/TLS Certificate for ja-kyoto.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.ja-kyoto.jp
- Valid from
- Jun 16, 2026
- Valid until
- Jan 1, 2027 (50 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 634520859DB3815870F53871
- SHA-256 fingerprint
- 93:62:6E:31:9E:8E:E2:88:9F:71:72:33:6B:48:54:EF:19:73:34:9A:59:8A:72:4B:7C:CF:44:62:57:81:F2:A6
- Chain
- GlobalSign RSA OV SSL CA 2018 → GlobalSign
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 Jul 26, 2026.
Never get surprised by ja-kyoto.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ja-kyoto.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.