Hostname

bool.icu

Last fetched Fri, 24 Jul 2026 10:08:48 GMT

bool.icu resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:1068 as the registrar.

Nutrition Label

Resolution chain

bool.icu resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
104.21.54.220	104.21.48.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
172.67.142.176	172.67.128.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA

WHOIS identity

Registrar: iana:1068
Organization: privacy service provided by withheld for privacy ehf
Contact emails: —

Web-graph footprint

Distinct hostnames that link to or from bool.icu in the public web crawl.

8 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mx.yandex.net

SPF policy

1 SPF mechanism authorising senders for bool.icu.

Mechanism	Target
SPF_REDIRECT	_spf.yandex.net

Pivot deeper into the graph from bool.icu.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "bool.icu"})-[: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.