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Domain footprint: csdn.net

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: 124.70.25.132 → HWCSNET
Mail: mxbiz1.qq.com → DeepIDC Technology International Co., Limited · mxbiz2.qq.com → ACEVILLEPTELTD-SG
SPF sends via: spf.mail.qq.com

Separately, 20 organisations whose name resembles “csdn.net” — these may be unrelated to the domain above.

  1. CS SPA 48 netblocks · RIPE registry Routing Unverified name
  2. CS-NET Informática e Tecnologia Ltda. 23 netblocks · ARIN registry Routing
  3. CS NET COMUNICAÇÃO LTDA 15 netblocks · ARIN registry Routing
  4. CSD Network Services Ltd 14 netblocks · RIPE registry Routing
  5. CSDP 4 netblocks · Italy Routing
  6. CS-NET Informática e Tecnologia 4 netblocks · PEERINGDB registry Routing
  7. CSTB 3 netblocks · Luxembourg Routing
  8. TELIA-FI-NET-CS-NET 2 netblocks · Sweden Routing
  9. ZX-NET-CSX-MAN 2 netblocks · APNIC registry Routing
  10. CSDNET SERVICIOS DIGITALES S.R.L. 1 netblock · ARIN registry Routing
  11. TELENET-ISDN-NET 1 netblock · RIPE registry Routing
  12. SASEUROPE-NET-CS07 1 netblock · United Kingdom Routing
  13. SASEUROPE-NET-CS02 1 netblock · United Kingdom Routing
  14. Changsha-HHY-DIA-3552-DDN-Net-COCACOLA 1 netblock · APNIC registry Routing
  15. SBD-NET-CS-DE-HOVEN 1 netblock · RIPE registry Routing
  16. NET-CsPortalim 1 netblock · RIPE registry Routing
  17. CUSTOM-NET-CSS-REGIO-NET 1 netblock · RIPE registry Routing
  18. SASEUROPE-NET-CSISL 1 netblock · United Kingdom Routing
  19. NET-CSTB-1 1 netblock · RIPE registry Routing
  20. SASEUROPE-NET-CSPL 1 netblock · United Kingdom Routing