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Domain footprint: jyukunavi.jp

Resolved live just now — where this domain's services actually run, with each address attributed by OrgIndex. A DNS observation, not registry data: many organisations run entirely on providers' networks and hold no IP space of their own.

Web: 27.133.240.9 → DRTZ

Mail: mail.jyukunavi.jp → DRTZ · mail2.jyukunavi.jp → Amazon Web Services, Inc. · mail3.jyukunavi.jp → Amazon Web Services, Inc.

SPF sends via: spf.grpmail.jp

No organisation is registered under the name "jyukunavi.jp"

The addresses above are where it actually runs — resolved live and attributed to the operator that registered each range. That is the answer for a domain; a name match here would only add something if a company were registered under this name too.

Sites hosted on a provider (OVH, Cloudflare, AWS and the like) show that provider, because the address space is registered to them rather than to the site's owner.