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Domain footprint: upaiyun.com

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: 183.136.236.254 → CHINANET-ZJ-HZ
Mail: mx1.feishu.cn → Amazon Web Services, Inc. · mx2.feishu.cn → ZLLX · mx3.feishu.cn → Amazon Web Services, Inc.
SPF sends via: _netblocks.m.feishu.cn

Separately, 2 organisations whose name resembles “upaiyun.com” — these may be unrelated to the domain above.

  1. TIANJINYUANHUAHAIYUN-com-tj 2 netblocks · APNIC registry Routing Unverified name
  2. ZHOUSHAN-HAIJIN-HAIYUN-COM 1 netblock · APNIC registry Routing