SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for gts-sap.jp

Valid
Issued by (CA)
Google Trust Services
Subject
gts-sap.jp
Valid from
Sep 6, 2026
Valid until
Dec 5, 2026 (89 days remaining)
Public key
EC 256-bit
Serial
F63958139365D2DF1397AB038BC9794F
SHA-256 fingerprint
4E:01:E5:FF:54:C6:92:5B:04:A2:4F:5B:6D:FA:44:F4:CC:ED:E6:0C:2E:61:54:61:9E:33:C9:48:53:E8:FF:16
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.gts-sap.jp, gts-sap.jp

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by gts-sap.jp's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch gts-sap.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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.