Hostname

i4b.com.br

Last fetched Sat, 30 May 2026 10:11:48 GMT

i4b.com.br resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA.

Nutrition Label

Resolution chain

i4b.com.br 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
104.21.18.88	104.21.16.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
172.67.181.132	172.67.176.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA

WHOIS identity

Registrar

—

Organization

renan arrieiro castanho proferis

Contact emails

Subdomains

1 observed subdomain of i4b.com.br.

Subdomain
www.i4b.com.br

Web-graph footprint

Distinct hostnames that link to or from i4b.com.br in the public web crawl.

6 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for i4b.com.br.

Mechanism	Target
SPF_INCLUDE	zoho.com

Pivot deeper into the graph from i4b.com.br.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "i4b.com.br"})-[: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.