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Domain footprint: optimism.io
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:
63.176.8.218 → Amazon Web Services, Inc. ·
35.157.26.135 → Amazon Web Services, Inc. ·
2a05:d014:58f:6200::258 → Amazon Web Services, Inc. ·
2a05:d014:58f:6200::259 → Amazon Web Services, Inc.
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 · mg-spf.greenhouse.io · 44826671.spf08.hubspotemail.net
Separately, 1 organisation whose name resembles “optimism.io” — these may be unrelated to the domain above.