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Domain footprint: fnbsf.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:
104.20.42.17 → Cloudflare, Inc. ·
172.66.173.81 → Cloudflare, Inc. ·
2606:4700:10::6814:2a11 → Cloudflare, Inc. ·
2606:4700:10::ac42:ad51 → Cloudflare, Inc.
Mail:
us-smtp-inbound-1.mimecast.com → Mimecast North America Inc ·
us-smtp-inbound-2.mimecast.com → Mimecast North America Inc
SPF sends via:
spf.cashedge.com · sendgrid.net · us._netblocks.mimecast.com · spf.protection.outlook.com · _spf1.fnbsf.com · spfhost.messageprovider.com
No organisation is registered under the name "fnbsf.com"
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.