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 roadic-sapporo.org

Valid
Issued by (CA)
Nijimo, Inc.
Subject
www.roadic-sapporo.org
Valid from
May 1, 2026
Valid until
Nov 15, 2026 (93 days remaining)
Public key
RSA 2048-bit
Serial
45EA4E95735FD3211E368342D3948442
SHA-256 fingerprint
89:3B:14:03:70:E1:F5:3A:86:AB:1D:6F:14:CD:CC:3C:F4:9B:7A:65:5A:57:64:7B:74:48:8F:95:79:2E:C6:06
Chain
FujiSSL RSA Domain Validation Secure Server CA 2 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
roadic-sapporo.org, www.roadic-sapporo.org

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 Aug 3, 2026.

Never get surprised by roadic-sapporo.org's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch roadic-sapporo.org 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.