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Hostname

a4.school

Last fetched

a4.school resolves to 1 IPv4 address operated by AS24940 in DE. WHOIS lists iana:1408 as the registrar.

Nutrition Label

WHISPER CANON · a4.schoolRouting diversity1.5/10Peering density7.6/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint4.0/10canon.whisper.security/host/a4.school

Resolution chain

a4.school resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
78.47.210.578.46.0.0/15AS24940—DE

WHOIS identity

Registrar
iana:1408
Organization
christoph leers
Contact emails

Subdomains

19 observed subdomains of a4.school.

Subdomain
domschulen-magdeburg.a4.school
ib-neuenhagen.a4.school
ibfl.a4.school
ill-ev.a4.school
kvd.a4.school
lehmbaugruppe.a4.school
lernhilfefabian.a4.school
marta-belstler-schulen.a4.school
medienformfarbe.a4.school
oko.a4.school
pks.a4.school
rea.a4.school
semper.a4.school
sozialwesen-witt.a4.school
sthbasel.a4.school
stiftungsschulen.a4.school
wildcard.a4.school
wksbern.a4.school
wksweb.a4.school

Web-graph footprint

Distinct hostnames that link to or from a4.school in the public web crawl.

1 site linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

Related pages

Pivot deeper into the graph from a4.school.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "a4.school"})-[: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.