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Domain footprint: teikyo-u.ac.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: 222.230.191.138 → Vectant

Mail: alt1.aspmx.l.google.com → Google LLC · alt2.aspmx.l.google.com → Google LLC · aspmx.l.google.com → Google LLC · aspmx2.googlemail.com → Google LLC

SPF sends via: _spf.google.com · aspmx.pardot.com · send.teikyo.jp · dococab.jp · digital-knowledge.sm.air.ne.jp

No organisation is registered under the name "teikyo-u.ac.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.