Hostname

isi.pf

Last fetched Tue, 28 Jul 2026 19:08:11 GMT

isi.pf resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:leon tefau as the registrar.

Nutrition Label

Resolution chain

isi.pf 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
104.21.74.187	104.21.64.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
172.67.205.161	172.67.192.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA

WHOIS identity

Registrar: registrar:leon tefau
Organization: chungue david
Contact emails: —

Subdomains

14 observed subdomains of isi.pf.

Subdomain
adventistes.isi.pf
cfpa.isi.pf
heiva.isi.pf
kine-ortho.isi.pf
netfenua.isi.pf
nz3.isi.pf
ovh1.isi.pf
peneweb.isi.pf
registrar.isi.pf
resatix.isi.pf
server.isi.pf
ssdnodes-1.isi.pf
terevau.isi.pf
www.isi.pf

Web-graph footprint

Distinct hostnames that link to or from isi.pf in the public web crawl.

9 sites link to this hostname.

8 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

13 SPF mechanisms authorising senders for isi.pf.

Mechanism	Target
SPF_INCLUDE	_spf.google.com
SPF_INCLUDE	servers.mcsv.net
SPF_IP	139.99.210.95
SPF_IP	158.69.80.161
SPF_IP	159.203.247.158
SPF_IP	161.97.133.111
SPF_IP	192.99.15.85
SPF_IP	192.99.8.139
SPF_IP	209.182.232.171
SPF_IP	213.186.33.16/32
SPF_IP	51.79.102.167
SPF_IP	51.79.28.255
SPF_IP	54.39.52.210

Pivot deeper into the graph from isi.pf.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "isi.pf"})-[: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.