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
Resolution chain
a4.school 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 |
|---|---|---|---|---|
| 78.47.210.5 | 78.46.0.0/15 | AS24940 | — | DE |
WHOIS identity
- Registrar
- iana:1408
- Organization
- christoph leers
- Contact emails
Subdomains
19 observed subdomains of 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 20Or query Whisper from your own LLM workflow via the Whisper MCP server.