Hostname

bcsa.org.uk

Last fetched Thu, 02 Jul 2026 14:12:59 GMT

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

Nutrition Label

Resolution chain

bcsa.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
20.50.106.247	20.48.0.0/12	AS8075	MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation	GB

WHOIS identity

Registrar: registrar:cloudflare, inc. [tag = cloudflare]
Organization: british constructional association
Contact emails: —

Subdomains

4 observed subdomains of bcsa.org.uk.

Subdomain
admin.bcsa.org.uk
autodiscover.bcsa.org.uk
wildcard.bcsa.org.uk
www.bcsa.org.uk

Web-graph footprint

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

75 sites link to this hostname.

134 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

9 SPF mechanisms authorising senders for bcsa.org.uk.

Mechanism	Target
SPF_INCLUDE	eu._netblocks.mimecast.com
SPF_INCLUDE	mailgun.org
SPF_INCLUDE	sendgrid.net
SPF_INCLUDE	spf.mandrillapp.com
SPF_INCLUDE	spf.protection.outlook.com
SPF_INCLUDE	spf.sendinblue.com
SPF_IP	149.72.95.143/32
SPF_IP	159.65.28.58
SPF_IP	167.89.63.37/32

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

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "bcsa.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.