Hostname

www.cern

Last fetched Sat, 25 Jul 2026 23:45:31 GMT

www.cern resolves to 1 IPv4 address operated by AS513 in CH. WHOIS lists iana:140 as the registrar.

Nutrition Label

Resolution chain

www.cern 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
137.138.6.31	137.138.0.0/16	AS513	—	CH

WHOIS identity

Registrar

iana:140

Organization

european organization for nuclear research ('cern')

Contact emails

cern.gtld@cern.ch

Web-graph footprint

Distinct hostnames that link to or from www.cern in the public web crawl.

20 sites link to this hostname.

1 site linked to from this hostname.

Sample inbound links

Sample outbound links

home.cern

Threat posture

History

Pivot deeper into the graph from www.cern.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "www.cern"})-[: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.