Hostname

efunction.nu

Last fetched Tue, 04 Aug 2026 12:00:59 GMT

efunction.nu resolves to 1 IPv4 address operated by BALLOU-AS - Hostek AB in SE.

Nutrition Label

Resolution chain

efunction.nu 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
91.189.42.155	91.189.40.0/21	AS29024	BALLOU-AS - Hostek AB	SE

WHOIS identity

No WHOIS records are currently associated with efunction.nu in WhisperGraph.

Subdomains

1 observed subdomain of efunction.nu.

Subdomain
www.efunction.nu

Web-graph footprint

Distinct hostnames that link to or from efunction.nu in the public web crawl.

1 site linked to from this hostname.

Sample outbound links

anoto.com

Threat posture

History

Mail and authentication

MX records

smtp-fb.ballou.se

SPF policy

1 SPF mechanism authorising senders for efunction.nu.

Mechanism	Target
SPF_INCLUDE	spf.ballou.se

Pivot deeper into the graph from efunction.nu.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "efunction.nu"})-[: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.