Hostname

rsf.fo

Last fetched Thu, 02 Jul 2026 17:11:15 GMT

rsf.fo resolves to 3 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:fo umsitingin as the registrar.

Nutrition Label

Resolution chain

rsf.fo resolves to 3 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
104.26.10.184	104.26.0.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
104.26.11.184	104.26.0.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
172.67.74.15	172.67.64.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA

WHOIS identity

Registrar: registrar:fo umsitingin
Organization: róðrarsamband føroya
Contact emails: —

Subdomains

10 observed subdomains of rsf.fo.

Subdomain
admin.rsf.fo
hagtoel.rsf.fo
innirodur.rsf.fo
staging-1707930696.rsf.fo
staging-1746528025.rsf.fo
urslit.rsf.fo
wildcard.rsf.fo
www.rsf.fo

Showing 8 of 10. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from rsf.fo in the public web crawl.

14 sites link to this hostname.

50 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

smtp.google.com

SPF policy

1 SPF mechanism authorising senders for rsf.fo.

Mechanism	Target
SPF_INCLUDE	_spf.google.com

Pivot deeper into the graph from rsf.fo.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "rsf.fo"})-[:RESOLVES_TO]->(ip:IPV4)
      -[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)
      -[:ROUTES]->(asn:ASN)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, asn.name AS asn, n.name AS operator
LIMIT 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.