Hostname

b4s.pl

Last fetched Tue, 30 Jun 2026 02:12:21 GMT

b4s.pl resolves to 1 IPv4 address operated by AS12824 in PL. WHOIS lists registrar:home.pl s.a. as the registrar.

Nutrition Label

Resolution chain

b4s.pl 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
89.161.251.95	89.161.192.0/18	AS12824	—	PL

WHOIS identity

Registrar: registrar:home.pl s.a.
Organization: b4s sp. z o.o.
Contact emails: —

Subdomains

1 observed subdomain of b4s.pl.

Subdomain
www.b4s.pl

Web-graph footprint

Distinct hostnames that link to or from b4s.pl in the public web crawl.

10 sites link to this hostname.

21 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

b4s.pl

SPF policy

3 SPF mechanisms authorising senders for b4s.pl.

Mechanism	Target
SPF_A	b4s.pl
SPF_IP	188.128.214.201
SPF_MX	b4s.pl

Pivot deeper into the graph from b4s.pl.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "b4s.pl"})-[: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.