Hostname

bsa.org.uk

Last fetched Tue, 30 Jun 2026 09:23:54 GMT

bsa.org.uk resolves to 1 IPv4 address operated by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation in GB. WHOIS lists registrar:claranet limited [tag = claranet] as the registrar.

Nutrition Label

Resolution chain

bsa.org.uk resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
51.104.28.65	51.104.0.0/15	AS8075	MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	GB

WHOIS identity

Registrar: registrar:claranet limited [tag = claranet]
Organization: the building societies association
Contact emails: —

Subdomains

14 observed subdomains of bsa.org.uk.

Subdomain
email.bsa.org.uk
file.bsa.org.uk
filr.bsa.org.uk
intranet.bsa.org.uk
mail.bsa.org.uk
mobile.bsa.org.uk
process.bsa.org.uk
retain.bsa.org.uk
secure.bsa.org.uk
www.bsa.org.uk
zenproxy.bsa.org.uk

Showing 11 of 14. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from bsa.org.uk in the public web crawl.

337 sites link to this hostname.

621 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

7 SPF mechanisms authorising senders for bsa.org.uk.

Mechanism	Target
SPF_INCLUDE	app.aventri.com
SPF_INCLUDE	sendgrid.net
SPF_INCLUDE	spf.mailanyone.net
SPF_INCLUDE	spf.protection.outlook.com
SPF_IP	78.136.61.65
SPF_IP	80.249.100.128/26
SPF_MX	bsa.org.uk

Pivot deeper into the graph from bsa.org.uk.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "bsa.org.uk"})-[: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.