Hostname

bur.st

Last fetched Thu, 23 Jul 2026 17:44:50 GMT

bur.st resolves to 6 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:st registry as the registrar.

Nutrition Label

Resolution chain

bur.st resolves to 6 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
104.21.46.48	104.21.32.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
172.67.223.162	172.67.208.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
188.114.96.3	188.114.96.0/24	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
188.114.96.4	188.114.96.0/24	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
188.114.97.3	188.114.97.0/24	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
188.114.97.4	188.114.97.0/24	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA

WHOIS identity

Registrar: registrar:st registry
Organization: contact: paul day
Contact emails: —

Subdomains

13 observed subdomains of bur.st.

Subdomain
jesse.bur.st
mail1.bur.st
mail2.bur.st
mail3.bur.st
mail4.bur.st
ns1.bur.st
ns2.bur.st
ns3.bur.st
ns4.bur.st
ns5.bur.st
ns6.bur.st
weirdo.bur.st
www.bur.st

Web-graph footprint

Distinct hostnames that link to or from bur.st in the public web crawl.

36 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for bur.st.

Mechanism	Target
SPF_INCLUDE	_spf.mx.cloudflare.net

Pivot deeper into the graph from bur.st.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "bur.st"})-[: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.