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Domain footprint: quad9.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: 195.176.255.138 → SWITCH-QUAD9-HOSTING · 2001:620:2020:5:9::138 → SWITCH-QUAD9-HOSTING-IPV6
Mail: mx4.quad9.net → WoodyNet, Inc.

Separately, 13 organisations whose name resembles “quad9.com” — these may be unrelated to the domain above.

  1. Quad9 21 netblocks · ARIN registry Routing Unverified name
  2. Quad9 Stiftung 4 netblocks · RIPE registry Routing
  3. ZEN20230610 NOC QUAD COMPUTER SERVICES LIMITED 2 netblocks · RIPE registry Registry
  4. Quad9 Administrative 2 netblocks · PEERINGDB registry Routing
  5. ZEN20251024 NOC QUAD COMPUTER SERVICES LIMITED 1 netblock · RIPE registry Registry
  6. ZEN20191121 NOC QUAD COMPUTER SERVICES LIMITED 1 netblock · RIPE registry Registry
  7. ZEN20190807 NOC QUAD COMPUTER SERVICES LIMITED 1 netblock · RIPE registry Registry
  8. ZEN20200604 NOC QUAD COMPUTER SERVICES LIMITED 1 netblock · RIPE registry Registry
  9. ZEN20240806 NOC QUAD COMPUTER SERVICES LIMITED 1 netblock · RIPE registry Registry
  10. ZEN20210422 NOC QUAD COMPUTER SERVICES LIMITED 1 netblock · RIPE registry Registry
  11. SWITCH-QUAD9-HOSTING-IPV6 1 netblock · United States Routing
  12. COM-QUOTIDIENS 1 netblock · Luxembourg Routing
  13. SWITCH-QUAD9-HOSTING 1 netblock · United States Routing